ColorPickr

app.colorpickrPublished by colorpickr.appOfficial publisherv0.1.0Updated Oct 24, 2026

Contrast checks with fixes, OKLCH harmonies, palettes, color-blind previews and code export.

VerifiedStreamable HTTPWeb executableDeveloper ToolsMedia & Design

Overview

AI-generated overview

Remote color tool server that lets an assistant check contrast, convert colors, build harmonies and palettes, simulate color vision, and export code.

What you can do
  • Check text/background contrast with WCAG 2 ratios, APCA Lc and a hue-preserving fix suggestion
  • Convert a hex color into RGB, HSL and OKLCH
  • Build OKLCH color harmonies from a base color, mapped into the sRGB gamut
  • Generate five-color palettes that always include a light/dark pair passing WCAG AA, optionally keeping locked colors
  • Simulate protanopia, deuteranopia, tritanopia and achromatopsia views of colors
  • Export color lists as code for CSS, Tailwind, SwiftUI, Android, Flutter and other formats
When to use it
Useful when designing or reviewing UI colors: checking accessibility contrast, picking accessible palettes, previewing color-blind appearance, or turning a chosen palette into framework-ready code.
Requirements
A remote streamable HTTP endpoint at colorpickr.app; no packages, environment variables, headers or authentication are declared.
Before you install
No credentials or write access are declared; the tools only compute color values. Color choices and palettes you submit are sent to the remote service.

Installation

In SourceWeft

  1. Open ColorPickr in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/app.colorpickr%2Fcolorpickr/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "colorpickr": {
      "type": "http",
      "url": "https://colorpickr.app/mcp"
    }
  }
}

Tools

6

check_contrast

Check contrast

Check text/background contrast with WCAG 2 ratio, APCA Lc and a suggested fix that keeps the hue.

Parameterstextrequiredbackgroundrequired

convert_color

Convert color

Convert a hex color to RGB, HSL and OKLCH.

Parametershexrequired

generate_harmony

Generate harmony

Build a color harmony from a base color in OKLCH, mapped into the sRGB gamut.

Parametersbaserequiredtyperequired

roll_palette

Roll accessible palette

Generate a 5-color palette that always contains a light/dark pair passing WCAG AA; optionally keep locked colors.

Parametersseedlocked

export_palette

Export palette

Turn a list of colors into code for CSS, Tailwind, SwiftUI, Android, Flutter and other formats ColorPickr supports.

Parameterscolorsrequiredformatrequired

simulate_color_vision

Simulate color vision

Show how colors look with protanopia, deuteranopia, tritanopia or achromatopsia (Machado 2009).

Parameterstyperequiredcolorsrequiredseverity

Version history

1
  1. v0.1.0LatestOct 23, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.