Vextorium Image Palette Extractor

x402

Vextorium Image Palette Extractor is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15).

Extracts dominant colors from an image (URL or base64) returning HEX/RGB values, percentage share, average color, and light/dark tone classification.

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

Dominant colors of an image (URL or base64) with their share, in HEX and RGB, plus the average color and light/dark tone. For brand palettes, themes or tagging images by color.

Output

A JSON object containing: an array of dominant colors (up to 2-16) each with hex code, RGB array, and ratio_pct (percentage share); an avg_color object with hex and RGB of the overall average color; and a tone string indicating whether the image is light or dark.

Example use cases

Brand palette from logo image

“Pull the top 6 dominant colors from our logo at https://mybrand.com/logo.png and give me each one in HEX and RGB with their share percentage, so I can build our brand style guide.”

Auto-tag product photos by color

“I have a product image at https://shop.example.com/products/shirt-blue.jpg — can you extract the 4 main colors in HEX with their ratios so I can automatically tag it in our catalog?”

Generate a UI theme from a hero image

“Analyze this hero image at https://mysite.com/hero.jpg and give me the 8 dominant colors with HEX codes and whether the image is light or dark, so I can pick matching UI colors.”

Technical details

Endpoint

POSThttps://api.vextorium.com/v1/image-palette?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to programmatically extract a structured color palette from any image — either by URL or base64 — and require both HEX and RGB formats, percentage breakdowns, an average color, and light/dark tone classification. Ideal for brand palette automation, UI theme generation, image tagging pipelines, or any workflow where color data needs to feed downstream design or categorization logic.

Side effects

Image URL is inaccessible or returns a non-200 response
Base64 string is malformed or not a valid image format
colors parameter outside 2-16 range causes validation error
Image too large may cause timeout or processing error
Neither url nor base64_img provided results in missing input error

Input

Schema · Request body

Field	Type	Description
url	string
colors	integer	2-16 (default 6)
base64_img	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "tone": "oscuro",
    "colors": [
      {
        "hex": "#0d0f11",
        "rgb": [
          13,
          15
        ],
        "ratio_pct": 45.38
      },
      {
        "hex": "#0e1916",
        "rgb": [
          14,
          25
        ],
        "ratio_pct": 40.85
      }
    ],
    "avg_color": {
      "hex": "#15211d",
      "rgb": [
        21,
        33
      ]
    }
  }
}

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