HEX Format
Format: 6-digit hexadecimal Example: #FF5733 Short form: #F57
Best for: Web design, CSS styling, design tools
RGB/RGBA
Format: Red, Green, Blue values (0-255) Example: rgb(255, 87, 51) With alpha: rgba(255, 87, 51, 0.5)
Best for: CSS, JavaScript color manipulation, programmatic colors
HSL/HSLA
Format: Hue, Saturation, Lightness Example: hsl(9, 100%, 60%) With alpha: hsla(9, 100%, 60%, 0.5)
Best for: Creating color variations, programmatic color adjustments
Common Use Cases
Design System Colors
Define brand colors and convert to all needed formats for consistent design systems across web, mobile, and print.
Accessibility Testing
Ensure text meets WCAG contrast requirements with built-in accessibility checker for AA and AAA compliance.
CSS Development
Get exact color values for stylesheets in any format. Perfect for CSS variables and design tokens.
Color Palette Generation
Create harmonious color schemes using complementary, analogous, and triadic color theory principles.
Frequently Asked Questions
What's the difference between RGB and HSL?
RGB uses Red, Green, Blue values (0-255) and represents how screens display color. HSL uses Hue (0-360°), Saturation (0-100%), Lightness (0-100%) and is more intuitive for humans to adjust colors programmatically.
When should I use HSL instead of RGB?
Use HSL when you need to lighten/darken a color programmatically, create color variations, adjust saturation, or work with color harmony. HSL makes these adjustments much easier than RGB.
How do I ensure good contrast?
Use the WCAG guidelines: normal text needs a minimum 4.5:1 ratio (AA), and large text (18pt+) needs a minimum 3:1 ratio (AA). Use our accessibility checker to test your color combinations.
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Need Help with Design Systems?
Our design and development team can help implement consistent color systems and accessible design patterns for your applications.
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