Chart Color System
Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only.
사용해야 할까요
품질 및 안전성
도구 정의와 프로토콜 준수에 대한 자동 분석을 기반으로 합니다.
컨텍스트 비용
이는 서버의 도구가 모델의 컨텍스트에 로드될 때마다 소비되는 대략적인 토큰 수입니다. 수치가 높을수록 다른 작업에 사용할 수 있는 주의가 줄어듭니다.
설치
원클릭 설치
`claude_desktop_config.json` 파일에 다음을 추가하세요:
{
"mcpServers": {
"chart-color-system": {
"url": "https://chart-color-mcp.vercel.app/mcp"
}
}
}원격 엔드포인트
https://chart-color-mcp.vercel.app/mcpstreamable-http할 수 있는 일
도구 목록
도구 (4)
🟢solve_palette(n, anchors, background, grid, posture)
Generate a categorical chart palette of n colors (1-12) that maximizes perceptual separation under normal vision and colorblindness, with the given brand colors locked as anchors in slot order. Returns the palette, the worst pair distances, the engine's relaxation notes, a full accessibility audit against the background, and a link to open it in the app. Honest cap is 6 slots; above that the result says so.
입력 스키마
{
"type": "object",
"properties": {
"n": {
"type": "integer",
"minimum": 1,
"maximum": 12,
"default": 6,
"description": "Number of categorical slots"
},
"anchors": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 12,
"default": [],
"description": "Brand or required colors, kept exactly, in slot order (CSS syntax)"
},
"background": {
"type": "string",
"default": "#ffffff",
"description": "Chart background color"
},
"grid": {
"type": "string",
"description": "Gridline color; defaults to a light or dark gray to match the background"
},
"posture": {
"type": "string",
"enum": [
"kpi",
"comparative",
"exploratory"
],
"default": "comparative",
"description": "kpi: few strong colors; comparative: balanced; exploratory: many muted"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢audit_palette(colors, background, ramp)
Audit existing chart colors for accessibility: pairwise OKLab separation under normal vision, deuteranopia, protanopia, tritanopia and achromatopsia, plus WCAG 2.2 non-text contrast (3:1) of every color against the chart background. Returns a pass / warn / fail verdict with the numbers behind it. Set ramp=true for sequential or diverging scales, whose steps are meant to be close.
입력 스키마
{
"type": "object",
"properties": {
"colors": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1,
"maxItems": 24,
"description": "Palette colors in slot order (CSS syntax)"
},
"background": {
"type": "string",
"default": "#ffffff",
"description": "Chart background color"
},
"ramp": {
"type": "boolean",
"default": false,
"description": "true for a sequential or diverging scale (skips pairwise separation)"
}
},
"required": [
"colors"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢simulate_palette(colors, modes)
Show what each color looks like to readers with deuteranopia, protanopia, tritanopia or achromatopsia (published Machado 2009 matrices), so an assistant can describe or render the palette as a colorblind reader sees it.
입력 스키마
{
"type": "object",
"properties": {
"colors": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1,
"maxItems": 24,
"description": "Colors in slot order (CSS syntax)"
},
"modes": {
"type": "array",
"items": {
"type": "string",
"enum": [
"normal",
"deutan",
"protan",
"tritan",
"achromatopsia"
]
},
"description": "Vision modes to simulate; default all"
}
},
"required": [
"colors"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢build_ramp(kind, start, end, mid, steps, ...)
Build an evenly spaced perceptual (OKLab) color scale: sequential from start to end, or diverging from start through mid to end. Returns the steps and a background-contrast audit (pairwise separation is not judged for ramps).
입력 스키마
{
"type": "object",
"properties": {
"kind": {
"type": "string",
"enum": [
"sequential",
"diverging"
]
},
"start": {
"type": "string",
"description": "First color (or the negative end of a diverging scale)"
},
"end": {
"type": "string",
"description": "Last color (or the positive end)"
},
"mid": {
"type": "string",
"description": "Middle color for a diverging scale; default a neutral near the background"
},
"steps": {
"type": "integer",
"minimum": 3,
"maximum": 24,
"default": 7
},
"background": {
"type": "string",
"default": "#ffffff"
}
},
"required": [
"kind",
"start",
"end"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}커뮤니티
증거