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Vinkius

color-toolkit Connector for AI agents.

3 live capabilities

Generate mathematically accurate CSS palettes and UI colors for your design system.

Live agent request color-toolkit / Connector

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AI Agent

Why people use color-toolkit

Fix CSS Color Hallucinations with Deterministic Color Engine

This Connector changes that by replacing guesswork with real math. When you ask your agent to adjust a color, it uses a deterministic engine to calculate the exact luminance change. You get the right hex code the first time, so you can keep moving without checking your work.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • Visual Studio Code
  • Windsurf

What Vinkius changes

Your AI stops guessing and starts calculating your UI colors.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 5,900+ Connectors

  1. Real-world use case 01

    Fixing inconsistent button states

    The AI kept giving me slightly different shades of blue for buttons.

  2. Real-world use case 02

    Quickly building a landing page palette

    I needed a quick palette for a new landing page section.

  3. Real-world use case 03

    Standardizing a messy codebase

    My agent was mixing up RGB and HEX in the Tailwind config.

Complete set · 3capabilities

The complete color-toolkit capability set.

These are the exact actions your AI can choose when you ask it to work with color-toolkit.

Capability set01 / 01

01—03

3 capabilities in this set.

Part of 3 available through color-toolkit.

  1. 01 Capability

    Manipulate luminance

    Lightens or darkens a color by a specific percentage to create states like hover or active. This ensures your UI elements have consistent visual depth.

  2. 02 Capability

    Convert color

    Switches any CSS color between HEX, RGB, and HSL formats instantly. Use this to keep your codebase uniform regardless of your preferred input.

  3. 03 Capability

    Generate color palette

    Creates a mathematical set of analogous or complementary colors from a primary seed. This is perfect for building out full brand palettes.

Set up in minutes

One URL. Then ask color-toolkit to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use color-toolkit from the conversation.

Choose your client

Live preview
Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP
https://edge.vinkius.com/vk_preview_PEeGIgtA2fTZ16SsuzO4v3Rh5uk8KdzB2YxabLIM/mcp
  1. Step 01

    Open Connectors

    In Claude Web or Claude Desktop, open Settings and choose Connectors.

  2. Step 02

    Add the URL

    Choose Add custom connector, name it color-toolkit, and paste the URL above.

  3. Step 03

    Turn it on in chat

    Select +, open Connectors, and enable color-toolkit for the conversation.

Where the request belongs

Work color-toolkit can move forward.

Built around the request

This is for the frontend developer who's tired of manually fixing broken CSS colors or the UI designer who needs to keep a brand's identity perfectly consistent across dozens of pages.

01

Frontend Developer

They use this to generate accurate CSS variables and Tailwind classes without manually checking every hex code.

02

UI Designer

They use it to quickly spin up color schemes for new components while staying true to the brand's primary colors.

03

Design Systems Engineer

They use it to automate the creation of hover states and active states for large-scale component libraries.

Bring your own AI

Change the model, client or framework. Keep color-toolkit connected.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
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  • Windsurf
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  • Zed
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  • CrewAI
  • Vercel AI SDK

Before you connect

Questions about color-toolkit.

The practical details behind the request, access and result.

How does the Deterministic Color Engine help with my CSS?

It stops your AI from guessing hex codes. Instead of the AI making up a color that looks "darker," it uses math to provide the exact hex value you need for things like hover states or dark mode.

Can I use the Deterministic Color Engine for my brand colors?

Yes, it's perfect for that. You can give it your primary brand hex and have it generate entire palettes of complementary or analogous colors that stay perfectly in line with your brand identity.

Will the Deterministic Color Engine work with Tailwind CSS?

Absolutely. Since it outputs standard hex, RGB, and HSL codes, you can easily plug those values into your Tailwind configuration or any other CSS framework you're using.

Does the Deterministic Color Engine handle different color formats?

Yes, it can convert between HEX, RGB, and HSL formats instantly. This means your agent can work with whatever format your specific capabilities or design systems require.

Is the Deterministic Color Engine good for creating dark mode?

It's a great way to do it. You can systematically darken your entire primary color palette to create a cohesive and mathematically accurate dark mode for your app.

Why should I use this instead of just asking my AI to pick a color?

Because standard AI models often hallucinate. They don't actually "know" color math; they're just predicting the next character. This Connector forces the agent to use real calculations, ensuring your UI looks professional.

Why use an Connector for basic color conversion?

While AI models can sometimes guess standard conversions, they fail consistently when computing HSL luminance shifts (like creating a 10-step Tailwind color scale). An algorithmic engine guarantees zero error margins.

How does the palette generation work?

It converts the base color into HSL format and shifts the Hue degree. Complementary shifts by 180 degrees, while Analogous generates a harmonic palette by shifting -30 and +30 degrees.

Are there any external dependencies to run this capability?

Absolutely none. The color engine is built from scratch utilizing pure Javascript bitwise operators and math algorithms, providing zero-latency execution without external bloated libraries.

Why use an MCP for basic color conversion?

While AI models can sometimes guess standard conversions, they fail consistently when computing HSL luminance shifts (like creating a 10-step Tailwind color scale). An algorithmic engine guarantees zero error margins.

One connection away

Give your agent a direct line to color-toolkit.

Connect color-toolkit once. Keep it beside 5,900+ managed Connectors when the next task needs more.

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