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API · /palette-api

Color Palette API

healthy 4,845 Subscribers

Extract the dominant colour palette from any image. Pass an image URL (we fetch it) or a base64 image and get back its main colours — each as a hex code, RGB triplet and the percentage of the image it covers — plus the single dominant colour and the overall average colour. Choose how many colours to return (1 to 16). The image is decoded and downscaled locally and the colours are quantised on the fly; nothing is stored and there is no third-party service. Supports PNG, JPEG, BMP, TIFF and GIF. Live. 2 endpoints. Built for theming and design tools, auto-generating UI colours from artwork or product photos, brand-colour extraction, and image tagging. Distinct from a single-colour converter or an image resize/info service. No upstream key.

#color-palette #colors #image #design #developer-tools #theming
api.oanor.com/palette-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/palette-api/openapi.json
/api/palette-api/llms.txt

Discovery: GET /api/index.json lists every API.

Color Palette API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
89 ms
Server probes · 24h
Subscribers
4,845
active
Total calls
38
last 7 days
status Full status page → · 4 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 1,650 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,650 calls/month
  • 2 req/sec
  • URL + base64, up to 16 colours
  • No credit card
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Starter

€8.80 /month

  • 35,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 35k calls/month
  • 8 req/sec
  • Dominant + average + coverage
  • Email support
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Pro

€28.20 /month

  • 198,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 198k calls/month
  • 20 req/sec
  • Design / theming pipelines
  • Priority support
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Mega

€64.20 /month

  • 1,000,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1M calls/month
  • 50 req/sec
  • Platform scale
  • Dedicated SLA
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Built by

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PremiumApi

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A fast, fully-local SVG generator for mockups and UIs: placeholder images (a sized rectangle with centered text and automatic contrast), initials avatars (with a deterministic colour derived from the name, in a circle or square), and identicon-style symmetric patterns generated deterministically from any seed. Every endpoint returns the JSON envelope or, with raw=1, the raw SVG so the URL can be used directly as an image source. Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for prototypes, dashboards, user avatars, empty states and design systems.

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Inspect image metadata (dimensions, format, size, colour space, transparency) and resize or convert images between JPEG, PNG, WebP and AVIF straight from a URL. Perfect for thumbnails, format optimisation and on-the-fly image transforms.

api.oanor.com/image-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Color Palette API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Color Palette API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Color Palette API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Color Palette API cost?
Color Palette API has a free tier with 100 calls / month. Paid plans start at €8.80 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Color Palette API GDPR-compliant?
All requests to Color Palette API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/palette-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/palette-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/palette-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/palette-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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