Design
Design tools.
Convert colors between HEX, RGB, and HSL, check WCAG contrast, and other tools for designers and front-end developers.
10 tools
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Design
Color Converter
Convert colors between HEX, RGB, HSL, and HSV with a live picker and copy-ready values.
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Color Contrast Checker
Check the WCAG contrast ratio between two colors and see whether they pass AA and AAA accessibility levels.
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Aspect Ratio Calculator
Calculate and simplify an aspect ratio from width and height.
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Pixel / REM Converter
Convert CSS pixel values to rem units using any root font size.
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Color Palette Generator
Generate harmonious color palettes from a base HEX color.
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CSS Gradient Generator
Create a two-color linear gradient with live preview and copy-ready CSS.
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Box Shadow Generator
Build and preview a copy-ready CSS box-shadow declaration.
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Border Radius Preview
Preview independent corner radii and copy the resulting CSS.
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CSS Clamp Generator
Generate a responsive CSS clamp expression from value and viewport bounds.
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Spacing Scale Generator
Generate a geometric CSS spacing scale from a base size and ratio.
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