ToolsMAINTAINED1 token / call

Colors API

Everything a product does with color, in one API. 31,919 human-curated color names (the MIT color-names project, with its quality flag — nearest-name defaults to the 4,962 curated best names so #ff5733 comes back 'Orange Soda', not something unpronounceable) plus all CSS named colors with their spec keywords. Convert anything to everything: feed it hex (#ff5733, short #f53), rgb(255,87,51), bare '255,87,51' or hsl(11,100%,60%) and get hex, RGB, HSL, HSV, CMYK, WCAG relative luminance, a dark/light flag, the nearest curated name AND the nearest CSS keyword (tomato, 23.3 away). Generate named palettes — complementary, analogous, triadic, tetradic, split-complementary, monochromatic, shades, tints — with the base color preserved exactly (no HSL round-trip drift). Check WCAG accessibility: contrast ratio with AA/AAA pass-fail for normal and large text (black on white = 21). Search 32k names ('sunset' → 74 colors), filter to curated or CSS sets, or grab a random one. Design tools, theme builders, accessibility linters, data-viz libraries, e-commerce swatch naming — one token per call.

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response.json

{
  "ok": true,
  "hex": "#ff5733",
  "rgb": {
    "r": 255,
    "g": 87,
    "b": 51
  },
  "hsl": {
    "h": 11,
    "s": 100,
    "l": 60
  },
  "hsv": {
    "h": 11,
    "s": 80,
    "v": 100
  },
  "cmyk": {
    "c": 0,
    "m": 65.88,
    "y": 80,
    "k": 0
  },
  "luminance": 0.283,
  "is_dark": false,
  "name": {
    "hex": "#fa5b3d",
    "name": "Orange Soda",
    "is_bestof": true,
    "is_css": false,
    "distance": 11.87,
    "exact": false
  },
  "nearest_css": {
    "hex": "#ff6347",
    "name": "tomato",
    "distance": 23.32
  }
}

7endpoints

1tokens / call

99.9%uptime SLA

Lowavg latency

Why developers pick this API

Production-ready

Production Ready

Battle-tested infrastructure with a 99.9% uptime SLA. Rate limits are generous, responses are consistent.

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Standard REST + JSON. Works with any HTTP client. Copy-ready code snippets in 4 languages.

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Code snippets

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

3languages

7endpoints

RESTarchitecture

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One key works across 20+ APIs on the platform

import axios from 'axios';

const { data } = await axios.get(
  '{API_URL}',
  { headers: { 'X-Api-Key': process.env.API_KEY } }
);

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Available Endpoints

Request Parameters

API URL

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Headers

X-Api-Key

Query Parameters

value(Required)

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Client:

import axios from 'axios';

const url = '{API_URL}';
const { data } = await axios.get(url, {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});

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500 tokens / month

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