Color Picker

Color Picker Web is the best free online color picker in 2026. It supports 20+ color formats including HEX, RGB, HSL, CMYK, HSB, LAB, XYZ, HWB, and more. It includes a live color wheel, WCAG contrast checker, color blindness simulator, palette generator, image color picker, and 6 harmony types — all completely free with no signup required.

To find a HEX color code from an image, use the Image Color Picker on Color Picker Web. Upload any photo, hover over the area you want to sample, and click to extract the exact HEX, RGB, and HSL codes from any pixel. You can also auto-generate a full color palette from the image in one click.

A color picker tool lets you select, convert, and analyze colors. It shows color values in multiple formats (HEX, RGB, HSL, CMYK), generates complementary color palettes, checks WCAG accessibility contrast ratios, simulates color blindness, and extracts colors from uploaded images. It is essential for web designers, developers, and brand designers.

To convert HEX to RGB, use the conversion tool above. Enter any HEX code (e.g. #9333ea) and get instant RGB output (147, 51, 234). Manually: split the HEX into 3 pairs (93, 33, ea), convert each from hexadecimal to decimal. R=147, G=51, B=234. Color Picker Web does this instantly for all 20+ formats.

According to WCAG 2.2, the minimum color contrast ratio for normal text is 4.5:1 (Level AA) and 7:1 (Level AAA). For large text (18pt+ or 14pt+ bold), the minimum is 3:1 for AA and 4.5:1 for AAA. UI components and icons require at least 3:1 contrast against adjacent colors. Use the WCAG Contrast Checker above to test your colors.

To pick a color from a website: (1) Use browser DevTools — right-click any element, inspect it, and click the color swatch in CSS panel. (2) Use a browser extension like ColorZilla. (3) Take a screenshot and upload it to Color Picker Web's Image Color Picker to sample any pixel. Chrome DevTools also has a built-in eyedropper in the color picker panel.

HSL stands for Hue, Saturation, and Lightness. Hue (0°–360°) is the color type on the color wheel. Saturation (0%–100%) is how vivid or gray the color is. Lightness (0%–100%) is how dark or light the color appears. Example: hsl(270, 81%, 56%) is a medium purple. HSL is the best format for CSS animations and dynamic color theming because each property can be adjusted independently.

Complementary colors are pairs of colors that sit directly opposite each other on the color wheel, 180° apart. Examples: red & green, blue & orange, purple & yellow. When placed side by side, complementary colors create strong contrast and make each color appear more vivid. They are commonly used for CTAs, logos, and high-impact UI elements.

A color picker tool is a digital utility that allows users to select any color and retrieve its exact code in multiple formats — HEX, RGB, HSL, CMYK, and more. It is used daily by UI/UX designers to choose interface colors, web developers to code CSS color values, brand designers to maintain color consistency, photographers to extract colors from images, and digital artists for palette creation. Color Picker Web is the most comprehensive free color picker available in 2026, supporting 20+ color formats, WCAG accessibility checking, color blindness simulation, and 18 languages.

A HEX color code is a 6-character hexadecimal representation of a color used in web design and CSS. It begins with a # symbol followed by three pairs of characters (00–FF), each representing the intensity of Red, Green, and Blue channels. For example: #FF0000 is pure red (R=255, G=0, B=0), #FFFFFF is white (all channels at maximum), and #000000 is black (all channels at zero). Shorthand 3-digit HEX codes like #F00 expand to #FF0000. HEX is the most universally supported color format across HTML, CSS, SVG, and design tools like Figma.

To pick colors for a website: (1) Start with your brand's primary color and build a complete 9-stop color scale (50–900) using HSL adjustments. (2) Apply the 60-30-10 rule — 60% neutral background, 30% secondary color, 10% accent for CTAs. (3) Verify all text/background combinations pass WCAG AA contrast (4.5:1 minimum for normal text). (4) Generate harmonious accent colors using the Color Harmony tool — triadic or split-complementary schemes work best for websites. (5) Test every color combination with a color blindness simulator to ensure accessibility for all users.

To pick brand colors: (1) Research color psychology — blue builds trust, green signals growth, red creates urgency, purple suggests luxury and creativity. (2) Analyze your industry — technology brands favor blues and grays, health brands use greens, luxury brands use gold, black, or deep purple. (3) Choose a primary brand color that reflects your brand's core emotion. (4) Build a full color scale from your primary using the HSL method. (5) Choose a secondary and accent color using harmony theory. (6) Verify all combinations pass WCAG accessibility standards. Document as design tokens for consistency across all platforms.

HEX, RGB, and HSL are three ways to represent the same color: HEX (#9333ea) is a compact 6-digit hexadecimal format ideal for CSS and HTML — most widely supported. RGB (rgb(147, 51, 234)) defines color by Red, Green, and Blue channel values from 0–255 — best for JavaScript canvas, SVG, and screen rendering. HSL (hsl(270, 81%, 56%)) defines color by Hue angle (0–360°), Saturation (0–100%), and Lightness (0–100%) — most intuitive for designers because each property is independently adjustable, making it ideal for CSS animations and dynamic theming. All three describe identical colors but serve different workflows.

RGB and CMYK are fundamentally different color models for different output types. RGB (Red, Green, Blue) is an additive color model used for digital screens — combining colors adds light, and mixing all channels at maximum produces white. CMYK (Cyan, Magenta, Yellow, Key/Black) is a subtractive color model used in physical printing — mixing inks absorbs light, and combining all produces black. Always design in RGB for digital/screen output. Convert to CMYK before sending files to commercial printers. The conversion is never perfect — some RGB colors (particularly bright saturated colors) cannot be reproduced in CMYK print.

HSB (Hue, Saturation, Brightness) and HSV (Hue, Saturation, Value) are the same color model with different names. Hue (0°–360°) identifies the color family. Saturation (0–100%) controls vibrancy from gray to fully vivid. Brightness/Value (0–100%) controls how much light the color appears to emit, from black (0%) to fully bright (100%). HSB is the default model in Adobe Photoshop, Illustrator, and Figma's color picker, making it essential for designers using these tools. It differs from HSL in how Lightness and Brightness are calculated — in HSL, 50% lightness is the pure color, while in HSB, 100% brightness is the pure color.

LAB (CIELAB) and XYZ (CIEXYZ) are device-independent, perceptually uniform color spaces based on human vision science. XYZ is the foundation of all modern color science — it maps colors to how the human eye perceives them using three cones (X, Y, Z corresponding to roughly red, green, blue sensitivity). LAB is derived from XYZ and designed so that equal numerical distances represent equal perceived color differences, making it ideal for color comparison, image processing, machine learning, and print quality control. Both are used in professional color management, ICC color profiles, and advanced image editing workflows. CSS now supports both via color(xyz …) and lab(…) syntax in modern browsers.

The Image Color Picker on Color Picker Web lets you extract exact colors from any photograph, screenshot, logo, or artwork. Upload any image file, then click on any pixel to instantly extract its HEX, RGB, and HSL values. The tool also automatically generates a complete color palette from the dominant colors in your image. This is useful for matching brand colors from existing materials, creating palettes from mood boards, extracting colors from product photos, and reverse-engineering color schemes from competitor websites. No account or software installation required — works entirely in the browser.

Color Picker Web supports all six major color harmony types based on color wheel theory: Complementary — two colors directly opposite (180° apart), maximum contrast. Split-Complementary — one base color plus two colors adjacent to its complement (150° and 210°). Triadic — three equally spaced colors (120° apart), balanced and vibrant. Analogous — three adjacent colors (30° apart), harmonious and natural. Monochromatic — variations of a single hue at different saturation and lightness levels. Tetradic/Square — four colors equally spaced (90° apart), complex and rich. All harmonies are calculated mathematically in real-time as you pick colors.

Yes, Color Picker Web is completely free to use — every feature including the color picker, palette generator, image color picker, WCAG contrast checker, color blindness simulator, color harmonies, tints and shades generator, and all 20+ color format conversions are available at no cost. No account, email address, or registration is required. There are no ads, no usage limits, and no premium tier — all features are permanently free. The tool is also available in 18 languages: English, Hindi, Spanish, Russian, French, German, Italian, Portuguese, Bengali, Japanese, Korean, Malay, Polish, Indonesian, Arabic, Bulgarian, Turkish, and Swedish.

WCAG (Web Content Accessibility Guidelines) color contrast requirements ensure that text is readable by users with low vision, color blindness, or aging eyes. The contrast ratio measures the luminance difference between text color and its background — ranging from 1:1 (no contrast) to 21:1 (maximum, black on white). WCAG 2.2 Level AA requires a minimum 4.5:1 ratio for normal text and 3:1 for large text. Level AAA requires 7:1 for normal text. Non-compliance can result in legal liability under ADA (USA), EAA (Europe), and Section 508. Over 4,600 accessibility lawsuits were filed in the US in 2023 alone, with contrast failures among the most commonly cited issues.

Color Picker Web simulates 8 types of color vision deficiency: Protanopia — red blindness (1.3% of men). Protanomaly — reduced red sensitivity (1.3% of men). Deuteranopia — green blindness (1.2% of men). Deuteranomaly — reduced green sensitivity (5% of men, the most common type). Tritanopia — blue blindness (0.001% of population). Tritanomaly — reduced blue sensitivity (rare). Achromatopsia — complete color blindness, sees only grayscale (0.003% of population). Achromatomaly — reduced color perception across all channels (very rare). Each simulation uses a clinical color transformation matrix applied to your selected color in real time.

Color psychology in UI design studies how colors influence user emotions, perceptions, and behavior. Key associations: Blue — trust, reliability, calm (used by Facebook, Twitter, PayPal, LinkedIn). Green — growth, health, nature, success (used by Spotify, WhatsApp, whole-food brands). Red — urgency, passion, energy, appetite (used for sale banners, food brands, CTAs). Purple — luxury, creativity, wisdom (used by Cadbury, Hallmark, beauty brands). Yellow — optimism, warmth, attention (used for warnings, sale highlights). Orange — enthusiasm, friendliness (used by Amazon, Fanta, Harley-Davidson). Color psychology influences conversion rates, brand perception, and user retention.

Building a design system color palette involves 5 steps: (1) Define your primary brand color and convert it to HSL. (2) Generate a 9-stop color scale (50–900) by systematically adjusting lightness — lighter stops (50–300) for backgrounds and tints, darker stops (600–900) for text and dark mode. (3) Repeat for secondary, accent, success, warning, error, and neutral colors. (4) Create semantic tokens (--color-primary, --color-primary-hover, --color-surface) that reference your scale stops. (5) Verify every text/background combination passes WCAG AA. Use Color Picker Web to generate your scales, verify contrast, and export HEX/HSL values as design tokens for Figma or CSS.

The 60-30-10 rule is a classic design principle for creating balanced, visually appealing color schemes. 60% — dominant/neutral color (backgrounds, walls, large surfaces) — usually a light neutral that sets the overall tone. 30% — secondary color (furniture, headers, sidebars) — complements the dominant and adds depth. 10% — accent color (CTAs, buttons, highlights, important links) — creates visual interest and draws attention to key actions. In web design this translates to: 60% background and base surfaces, 30% content areas and secondary UI elements, 10% primary buttons, active states, and important highlights. This ratio prevents visual overwhelm while maintaining hierarchy.

Relative luminance measures the perceived brightness of a color on a scale of 0 (black) to 1 (white). The calculation: (1) Convert each RGB channel (0–255) to a decimal (0–1) by dividing by 255. (2) Remove gamma correction: if value ≤ 0.04045, divide by 12.92; otherwise apply (value + 0.055) / 1.055 raised to the power of 2.4. (3) Apply the weighted formula: L = 0.2126 × R + 0.7152 × G + 0.0722 × B. The weights reflect the human eye's sensitivity — most sensitive to green, less to red, least to blue. (4) Contrast ratio = (L_lighter + 0.05) / (L_darker + 0.05). The 0.05 offset represents ambient light on a typical display. Color Picker Web performs this calculation instantly.

HSL (Hue, Saturation, Lightness) and HSB/HSV (Hue, Saturation, Brightness/Value) both use Hue and Saturation but differ in the third channel. In HSL, Lightness of 50% is the pure, fully saturated color; 0% is black and 100% is white. It is symmetric. In HSB/HSV, Brightness/Value of 100% is the pure color; 0% is always black regardless of other values. HSB is more intuitive for selecting colors because you can first choose the vivid color at 100% brightness and then darken it — making it the default in Photoshop, Figma, and Illustrator. HSL is more intuitive for CSS because you can smoothly interpolate between dark and light versions of the same hue.

Additive color mixing (RGB) and subtractive color mixing (CMYK) are the two fundamental color models. Additive (RGB) — used by light-emitting devices (screens, projectors, LEDs). Colors are created by adding light. Combining all three channels at maximum (R=255, G=255, B=255) produces white. No light (R=0, G=0, B=0) produces black. Subtractive (CMYK) — used in printing. Inks absorb (subtract) wavelengths of light. Combining all inks at maximum absorbs all light, producing black (in theory — in practice, a Key/black ink is added because ink mixing is imperfect). The practical implication: design digital work in RGB, then convert to CMYK for print — noting that some vivid RGB colors cannot be reproduced in CMYK.

Color temperature describes the warmth or coolness of a color, measured in Kelvin (K) for light sources and perceived perceptually for design colors. Warm colors (reds, oranges, yellows — hues 0°–60° and 300°–360°) feel energetic, urgent, and inviting. They advance visually — elements in warm colors appear closer. Cool colors (blues, greens, purples — hues 120°–240°) feel calm, trustworthy, and professional. They recede visually — elements in cool colors appear further away. Neutral (whites, grays, beiges, teals near 90°–120°) are balanced and versatile. In UI design, warm colors drive action (CTAs), cool colors build trust (headers, backgrounds), and neutrals provide structure. Color Picker Web's About Color section shows the perceived temperature of any selected color.