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Color Converter

Enter a color in any format

Preview

#10b981

RGB Sliders

R16
G185
B129

HSL Sliders

H160deg
S84%
L39%

Color Values

HEX#10b981
RGBrgb(16, 185, 129)
HSLhsl(160, 84%, 39%)
HSB/HSVhsv(160, 91%, 73%)
CMYKcmyk(91%, 0%, 30%, 27%)
Tailwind
emerald-500
CSS Name
lightseagreen

Contrast Checker (WCAG 2.1)

Sample Text
On White Background2.54:1
FAILAA Normal
FAILAA Large
FAILAAA Normal
FAILAAA Large
Sample Text
On Black Background8.28:1
PASSAA Normal
PASSAA Large
PASSAAA Normal
PASSAAA Large

Color History

Colors you use will appear here.

What This Tool Does

Color Converter is built for deterministic developer and agent workflows.

Convert colors between HEX, RGB, HSL, HSV, CMYK, and Tailwind CSS with contrast checker.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated:

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Programmatic Access

Color Converter is also callable as a free HTTP JSON API at https://aidevhub.io/api/color-palette/convert/ — GET with query parameters or POST with a JSON body, no authentication, CORS enabled, 50 requests/day per IP. Responses return { ok, tool, result, meta }. 

curl -s "https://aidevhub.io/api/color-palette/convert/?color=%233b82f6&to=hsl"

Machine-readable contract: /api/tool/color-converter.json All API endpoints: /agents/ LLM site index: /llms.txt

Agent Invocation

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/color-palette/convert/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/color-palette/convert/ GET color-palette/convert
POST /api/color-palette/convert/ POST color-palette/convert

Unified Runtime API

https://aidevhub.io/api/tools/run/?toolId=color-converter&a=...

GET and POST are supported at /api/tools/run/ with identical validation and limits.

Limit: 30 req / 60s, input max 256 KB.

How to Use Color Converter

  1. 1

    Paste any color format

    Enter a color in HEX (#FF5733), RGB (255, 87, 51), HSL (10, 100%, 60%), HSV, CMYK, or Tailwind CSS class name. The tool converts between all formats.

  2. 2

    See all format equivalents

    View conversions to HEX, RGB, HSL, HSV, CMYK, and Web color names. All formats update together when you adjust any value.

  3. 3

    Find matching Tailwind CSS color

    See the closest Tailwind CSS utility class for your color (e.g., bg-blue-500). If no exact match, it shows the nearest shade.

  4. 4

    Adjust lightness and saturation

    Use sliders to lighten/darken or increase/decrease saturation. See all format conversions update in real-time as you adjust.

  5. 5

    Copy any format to clipboard

    Click any color value to copy it. Useful for quick copy-paste into CSS, design tools, or code. Keyboard shortcut: click value → copy.

Frequently Asked Questions

What is Color Converter?
Color Converter translates colors between HEX, RGB, HSL, HSV, CMYK, and Tailwind CSS formats. It includes a contrast checker for accessibility compliance, making it useful for designers and frontend developers.
How do I use Color Converter?
Enter a color value in any supported format — HEX, RGB, HSL, HSV, or CMYK — and the tool instantly converts it to all other formats. Use the contrast checker to verify WCAG accessibility against background colors.
Is Color Converter free?
Yes. This tool is free to use with immediate access—no account required.
Does Color Converter store or send my data?
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is sent to any server.
Does it show the nearest Tailwind CSS color?
Yes. When you enter any color, the tool identifies the closest matching Tailwind CSS color class and shows the exact Tailwind shade name. This is helpful when migrating designs to a Tailwind-based project.