How to Pick Hex Colors from Images and Generate Harmonious Palettes
Whether you are designing a modern web application, building a design system in Figma or Tailwind CSS, or extracting brand colors from a logo, having a pixel-accurate image color picker is an essential tool in every digital creator's workflow.
Traditional screenshot tools can distort colors due to display profile conversions (such as sRGB vs Display P3) or compression artifacts. Our client-side image eyedropper reads raw canvas bitmaps directly in your browser, guaranteeing 100% color fidelity without transmitting any images over the network.
Comparison of Common Digital Color Models
| Color Model | Format Representation | Primary Use Case | How It Works |
|---|---|---|---|
| HEX (Hexadecimal) | #6366F1 or #FFF |
Web development, CSS, SVG, HTML | 6-digit base-16 notation representing Red, Green, and Blue intensities from 00 to FF (0 to 255). |
| RGB (Red, Green, Blue) | rgb(99, 102, 241) |
Monitors, televisions, digital displays | Additive color model where Red, Green, and Blue light beams combine to produce over 16.7 million shades. |
| HSL (Hue, Saturation, Lightness) | hsl(239, 84%, 67%) |
UI design systems, CSS variables | Intuitive cylindrical coordinate model where Hue is angle (0–360°), Saturation is purity, and Lightness is luminance. |
| HSV / HSB (Hue, Saturation, Value) | hsv(239, 59%, 95%) |
Digital painting, Photoshop, Figma | Similar to HSL, but Value measures the brightness relative to a pure white light source. |
| CMYK (Subtractive Print) | cmyk(59%, 58%, 0%, 5%) |
Offset printing, posters, merchandise | Subtractive model combining Cyan, Magenta, Yellow, and Key (Black) ink dots on physical paper. |
Understanding WCAG 2.1 Color Contrast Ratios
Designing accessible software is no longer optional; it is mandated by global accessibility standards such as ADA, Section 508, and the European Accessibility Act.
The contrast ratio measures the difference in perceived luminance between foreground text and the background color, calculated from 1:1 (no contrast, e.g. white on white) to 21:1 (maximum contrast, black on white).
- WCAG Level AA (Minimum): Requires a contrast ratio of at least 4.5:1 for body text and 3.0:1 for large text (18pt / 24px or bold 14pt / 18.66px).
- WCAG Level AAA (Enhanced): Requires a contrast ratio of at least 7.0:1 for normal text and 4.5:1 for large headings.
Our live contrast tester automatically computes relative luminance according to the official W3C formula and informs you whether white or dark text meets compliance on your selected color swatch.