contrastkit

endpoint

https://contrastkit.mike-tusa.workers.dev/mcp

protocol

streamable-http ·2025-06-18

authentication

none observed

public key

none — nobody has proven they own this listing · is it yours? claim it

karma

0 · newcomer

Is contrastkit live?

Yes — it answered the hub's last check (checked 2h ago). It answered 100% of checks over the last 30 days.

Is contrastkit free to use?

Yes — the hub reached it with no key and no payment.

What tools does contrastkit have?

4 tools: check_contrast, check_palette, convert_color, suggest_accessible_color.

Is contrastkit safe to connect?

The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

• check_contrast unknown 2h ago

  Compute the WCAG 2.x contrast ratio between a text (foreground) color and a background color, with pass/fail for AA, AA large text, AAA, AAA large text and non-text UI (3:1). Handles translucent colors. Read-only. Same engine as GET /api/contrast.

  mcp-tool

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  {
    "type": "object",
    "required": [
      "foreground",
      "background"
    ],
    "properties": {
      "background": {
        "type": "string",
        "maxLength": 64,
        "minLength": 1,
        "description": "Background color as a CSS color: \"#1a73e8\", \"#fff\", \"rgb(26 115 232)\", \"hsl(217 80% 51%)\", \"rgba(0,0,0,.6)\" or a name like \"navy\"."
      },
      "foreground": {
        "type": "string",
        "maxLength": 64,
        "minLength": 1,
        "description": "Text / foreground color as a CSS color: \"#1a73e8\", \"#fff\", \"rgb(26 115 232)\", \"hsl(217 80% 51%)\", \"rgba(0,0,0,.6)\" or a name like \"navy\"."
      }
    },
    "additionalProperties": false
  }

  arguments 22 lines copy
• check_palette unknown 2h ago

  Contrast ratio for every pair of 2 to 12 colors (up to 66 pairs), highest first, each flagged against the chosen WCAG level. Use it to see which brand colors can be used together for text. Read-only. Same engine as GET /api/palette.

  mcp-tool

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  {
    "type": "object",
    "required": [
      "colors"
    ],
    "properties": {
      "level": {
        "enum": [
          "aa",
          "aa-large",
          "aaa",
          "aaa-large",
          "ui"
        ],
        "type": "string",
        "default": "aa",
        "description": "WCAG target: aa 4.5:1 (default), aa-large 3:1, aaa 7:1, aaa-large 4.5:1, ui 3:1 (non-text)."
      },
      "colors": {
        "type": "array",
        "items": {
          "type": "string",
          "maxLength": 64,
          "minLength": 1,
          "description": "Palette color as a CSS color: \"#1a73e8\", \"#fff\", \"rgb(26 115 232)\", \"hsl(217 80% 51%)\", \"rgba(0,0,0,.6)\" or a name like \"navy\"."
        },
        "maxItems": 12,
        "minItems": 2,
        "description": "2 to 12 CSS colors."
      }
    },
    "additionalProperties": false
  }

  arguments 33 lines copy
• convert_color unknown 2h ago

  Convert a CSS color to hex, rgb() and hsl(), with its relative luminance, its contrast on white and on black, and the better text color (black or white) to put on it. Read-only. Same engine as GET /api/convert.

  mcp-tool

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  {
    "type": "object",
    "required": [
      "color"
    ],
    "properties": {
      "color": {
        "type": "string",
        "maxLength": 64,
        "minLength": 1,
        "description": "Color as a CSS color: \"#1a73e8\", \"#fff\", \"rgb(26 115 232)\", \"hsl(217 80% 51%)\", \"rgba(0,0,0,.6)\" or a name like \"navy\"."
      }
    },
    "additionalProperties": false
  }

  arguments 15 lines copy
• suggest_accessible_color unknown never probed

  For a failing color pair, find the closest color (same hue and saturation, lightness changed as little as possible) that meets the chosen WCAG level. Adjust the foreground (default), the background, or both (best first). Read-only. Same engine as GET /api/suggest.

  mcp-tool

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  {
    "type": "object",
    "required": [
      "foreground",
      "background"
    ],
    "properties": {
      "level": {
        "enum": [
          "aa",
          "aa-large",
          "aaa",
          "aaa-large",
          "ui"
        ],
        "type": "string",
        "default": "aa",
        "description": "WCAG target: aa 4.5:1 (default), aa-large 3:1, aaa 7:1, aaa-large 4.5:1, ui 3:1 (non-text)."
      },
      "adjust": {
        "enum": [
          "foreground",
          "background",
          "both"
        ],
        "type": "string",
        "default": "foreground",
        "description": "Which color may change."
      },
      "background": {
        "type": "string",
        "maxLength": 64,
        "minLength": 1,
        "description": "Background color as a CSS color: \"#1a73e8\", \"#fff\", \"rgb(26 115 232)\", \"hsl(217 80% 51%)\", \"rgba(0,0,0,.6)\" or a name like \"navy\"."
      },
      "foreground": {
        "type": "string",
        "maxLength": 64,
        "minLength": 1,
        "description": "Text / foreground color as a CSS color: \"#1a73e8\", \"#fff\", \"rgb(26 115 232)\", \"hsl(217 80% 51%)\", \"rgba(0,0,0,.6)\" or a name like \"navy\"."
      }
    },
    "additionalProperties": false
  }

  arguments 44 lines copy

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.