🎨 Color Tools
Free Online Color Tools
Pick colors, convert between HEX, RGB, HSL and CMYK, generate CSS gradients, build harmonious color palettes, and check WCAG contrast ratios — all free and 100% browser-based.
5Free Tools
0Server Uploads
100%Private & Free
All Color Tools
Color Picker
Visual HSL/RGB color wheel. Instantly get HEX, RGB, HSL and CMYK values. Copy any format to clipboard in one click.
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Color Converter
Convert colors between HEX, RGB, HSL, CMYK and HWB formats instantly. Enter any format and get all others calculated live.
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Gradient Generator
Create beautiful CSS linear and radial gradients visually. Add multiple color stops, adjust angle and copy ready-to-use CSS code.
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Color Palette Generator
Generate harmonious color palettes — complementary, triadic, analogous, split-complementary and more — from any base color.
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Contrast Checker
Check WCAG AA and AAA contrast ratios between foreground and background colours. Live preview with pass/fail badges.
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Why Use ToolZeel Color Tools?
⚙️ Powered by Web Standards
- All color math runs in vanilla JavaScript — no libraries, no latency
- Accurate HEX ↔ RGB ↔ HSL ↔ CMYK ↔ HWB conversions
- CSS gradient output is copy-paste ready for any project
- WCAG 2.1 contrast ratio algorithm built in
- No files, no uploads — everything stays in your browser
🎨 What You Can Do
- Pick the perfect brand color and export all its formats
- Convert a HEX code from a design file to RGB for CSS
- Generate a full gradient background for a hero section
- Build a triadic palette from your primary brand color
- Check that your text/button colors meet WCAG AA accessibility
- Find complementary accent colors for your UI design system