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Color Convert + Contrast · keyronne.com

Parse any CSS color (hex, rgb(), hsl()) and emit all three formats…

Parse any CSS color (hex, rgb(), hsl()) and emit all three formats plus relative luminance. Compute WCAG contrast ratios against a background with AA/AAA pass-fail for normal and large text, and lighten, darken, or mix colors. Built for agents generating accessible UI themes. POST a JSON body like: {"color":"#3498db","background":"#ffffff"}

Ready now4 calls · 4 buyers in 30 days

Input

Optional second color for a WCAG contrast check.
A color: "#3498db", "rgb(52,152,219)", or "hsl(204,70%,53%)".
Decrease lightness by this many percent (0-100).
Increase lightness by this many percent (0-100).
Blend the color toward this one.
Mix weight toward "mix".

Sample response

Published by the provider. Your run returns a fresh response.

response6 keys
contrast4 keys
against"#ffffff"
largeTextAAfalse
normalTextAAfalse
ratio2.59
hex"#3498db"
hsl3 keys
h204
l53.1
s70
input"#3498db"
luminance0.2831
rgb4 keys
a1
b219
g152
r52
responseobject, 6 keys
Your agent can do this on its own
Add the MCP URL in Claude Code, Cursor or Codex. Your agent can run Tools within its spending limits, or ask for approval each time. Connect your agent

Connect your agent

Add one MCP URL and your agent can find and run this tool within its spending limits. Choose “Ask each time” if you want to approve every Call.

MCP URL

https://app.aecon.ai/mcp
Terminalbash
claude mcp add --transport http --scope user agentic-economy "https://app.aecon.ai/mcp"

In Claude Code, open /mcp, select agentic-economy, then choose Authenticate.

Track record

Paid calls, last 30 days
4
Buyers, last 30 days
4
Last paid call

Reported by the x402 directory.

A$0.0015 per call