Color Palette

Create harmonious color palettes based on theory and convert colors between formats like hex, RGB, and HSL.

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What it can do

  • Generate Palette: Generate a harmonious color palette using color theory. Provide a base color, mood, or both. Returns an array of colors with hex, rgb, hsl, name, and CSS variable. Harmony modes use
  • Contrast Check: Check WCAG 2.1 accessibility contrast ratio between two colors. Returns the contrast ratio, AA pass/fail (4.5:1 normal, 3:1 large), AAA pass/fail (7:1 normal, 4.5:1 large), and suggest
  • Color Convert: Convert a color between formats: hex, rgb, hsl, and CSS named colors (140 standard names). Input any format and optionally specify the target format. Returns all formats if to_format is

What data it sees

Do you need an account

No: the server works without sign-in

Create harmonious color palettes based on theory and convert colors between formats like hex, RGB, and HSL. Ensure designs are inclusive by checking WCAG accessibility contrast ratios and receiving improvement suggestions. Generate production-ready CSS gradients and quickly find matching Tailwind CSS shades to accelerate styling workflows.

Server tool list (5)

Raw names from tools/list. Only developers need these.

generate_paletteGenerate a harmonious color palette using color theory. Provide a base color, mood, or both. Returns an array of colors with hex, rgb, hsl, name, and CSS variable. Harmony modes use HSL rotation (complementary=180°, analogous=30°, triadic=120°, etc.).
contrast_checkCheck WCAG 2.1 accessibility contrast ratio between two colors. Returns the contrast ratio, AA pass/fail (4.5:1 normal, 3:1 large), AAA pass/fail (7:1 normal, 4.5:1 large), and suggestions for improving contrast if it fails.
color_convertConvert a color between formats: hex, rgb, hsl, and CSS named colors (140 standard names). Input any format and optionally specify the target format. Returns all formats if to_format is omitted.
css_gradientGenerate ready-to-use CSS gradient code from an array of hex colors. Supports linear, radial, and conic gradients. Returns the CSS property value and a description of the visual effect.
tailwind_colorsLook up Tailwind CSS v3 color values. Provide color_name to get all shades (50–950), or provide closest_to (a hex value) to find the nearest Tailwind color and shade.