跳到取色器

免費色彩 API

透過一般 HTTP 解析顏色、轉換格式、檢查對比度、產生色階和配色、模擬色盲，並匯出設計 Token。不需要金鑰、免註冊，輸入輸出都是 JSON。

  • 不需要 API 金鑰，免註冊
  • GET 搭配查詢參數，或 POST 傳送 JSON
  • 已啟用 CORS，任何網站都能呼叫
  • 與本站相同的演算法：CSS Color 4
OpenAPI 3.1 規格在用 AI 助理？改為連接 MCP 伺服器

端點

  • Describe a color

    GET, POST /api/v1/parse-color

    Read any color and describe it: HEX, RGB, HSL and OKLCH values, the closest human name, the closest Tailwind class, its hue family, whether it fits sRGB and Display P3, and which text color, white or black, reads better on it.

    試試看: /api/v1/parse-color?color=oklch%2862%25+0.21+260%29

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/parse-color \
  -H 'Content-Type: application/json' \
  -d '{"color":"oklch(62% 0.21 260)"}'

  • Convert a color

    GET, POST /api/v1/convert-color

    Convert a color between formats: hex, rgb, hsl, hsv, hwb, cmyk, lab, lch, oklab, oklch, display-p3, rec2020, xyz and platform code (swiftui, uikit, flutter, android). Values follow CSS Color 4.

    試試看: /api/v1/convert-color?color=%23ff5733&formats=oklch%2Chsl%2Ccmyk

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/convert-color \
  -H 'Content-Type: application/json' \
  -d '{"color":"#ff5733","formats":["oklch","hsl","cmyk"]}'

  • Find colors by name

    GET, POST /api/v1/find-colors

    Search color names by words, like "sage", "dusty rose", "midnight blue" or "бордовый", and get their HEX values. Searches common names in English and Russian and about 30 000 extended color names. Use it to turn a description into real colors.

    試試看: /api/v1/find-colors?query=sage&limit=5

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/find-colors \
  -H 'Content-Type: application/json' \
  -d '{"query":"sage","limit":5}'

  • Check text contrast

    GET, POST /api/v1/check-contrast

    Check text contrast against a background with both WCAG 2 (ratio, AA and AAA for normal and large text) and APCA (Lc value and the usage level it allows). Also suggests the nearest text color that passes AA and AAA while keeping its hue.

    試試看: /api/v1/check-contrast?text=%236b7280&background=%23ffffff

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/check-contrast \
  -H 'Content-Type: application/json' \
  -d '{"text":"#6b7280","background":"#ffffff"}'

  • Fix contrast

    GET, POST /api/v1/fix-contrast

    Find the closest color that reaches a contrast target by changing only OKLCH lightness, so the hue and character stay. Targets: aa (4.5:1), aa-large (3:1), aaa (7:1), apca-body (Lc 75), apca-content (Lc 60), apca-large (Lc 45). Adjust the text color or the background.

    試試看: /api/v1/fix-contrast?text=%23f97316&background=%23ffffff&target=aa&adjust=text

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/fix-contrast \
  -H 'Content-Type: application/json' \
  -d '{"text":"#f97316","background":"#ffffff","target":"aa","adjust":"text"}'

  • Audit a palette for accessibility

    GET, POST /api/v1/audit-palette

    Check every text and background pair in a palette with WCAG 2 and APCA, list which pairs are safe for body text, large text or only decoration, find colors that people with color blindness cannot tell apart, and flag colors outside sRGB. Use it before shipping a theme or chart palette.

    試試看: /api/v1/audit-palette?colors=%230f172a%2C%23f8fafc%2C%232563eb%2C%23f97316%2C%2316a34a

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/audit-palette \
  -H 'Content-Type: application/json' \
  -d '{"colors":["#0f172a","#f8fafc","#2563eb","#f97316","#16a34a"]}'

  • Check gamut

    GET, POST /api/v1/check-gamut

    Check whether a color fits the sRGB, Display P3 and Rec. 2020 gamuts, and get the closest sRGB fallback that keeps lightness and hue (CSS Color 4 gamut mapping in OKLCH).

    試試看: /api/v1/check-gamut?color=oklch%2870%25+0.3+145%29

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/check-gamut \
  -H 'Content-Type: application/json' \
  -d '{"color":"oklch(70% 0.3 145)"}'

  • Find color names

    GET, POST /api/v1/nearest-names

    Find the closest named colors, CSS color keywords and Tailwind CSS classes for a color, ranked by perceptual distance (deltaE OK).

    試試看: /api/v1/nearest-names?color=%231e3a8a&limit=3

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/nearest-names \
  -H 'Content-Type: application/json' \
  -d '{"color":"#1e3a8a","limit":3}'

  • Compare two colors

    GET, POST /api/v1/compare-colors

    Compare two colors: CIEDE2000 and deltaE OK difference with a plain verdict (identical, nearly, similar, different, opposite), lightness shift in percent, chroma and hue shift, and the contrast between them.

    試試看: /api/v1/compare-colors?first=teal&second=turquoise

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/compare-colors \
  -H 'Content-Type: application/json' \
  -d '{"first":"teal","second":"turquoise"}'

  • Generate a 50–950 scale

    GET, POST /api/v1/generate-scale

    Build an 11-step tint and shade scale (50, 100 … 900, 950) from one color in OKLCH, the same shape as Tailwind palettes, with even perceived lightness steps.

    試試看: /api/v1/generate-scale?color=%233b82f6

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/generate-scale \
  -H 'Content-Type: application/json' \
  -d '{"color":"#3b82f6"}'

  • Tints, shades and tones

    GET, POST /api/v1/tints-shades

    Get tints (mixed with white), shades (mixed with black) and tones (mixed with gray) of a color, evenly spaced, as HEX. Good for hover states, borders and backgrounds.

    試試看: /api/v1/tints-shades?color=%232563eb&steps=5

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/tints-shades \
  -H 'Content-Type: application/json' \
  -d '{"color":"#2563eb","steps":5}'

  • Color harmonies

    GET, POST /api/v1/harmonies

    Get color harmonies for a base color, computed in OKLCH so lightness stays even: complementary, split-complementary, analogous, triadic, tetradic, square and monochromatic.

    試試看: /api/v1/harmonies?color=%23ff5733&kind=triadic

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/harmonies \
  -H 'Content-Type: application/json' \
  -d '{"color":"#ff5733","kind":"triadic"}'

  • Mix two colors

    GET, POST /api/v1/mix-colors

    Mix two colors at a ratio in a chosen color space, like CSS color-mix(). OKLab keeps the middle bright, sRGB tends to turn gray. Returns the result and a ready color-mix() expression.

    試試看: /api/v1/mix-colors?first=%23ff5733&second=%233b82f6&amount=30&space=oklab

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/mix-colors \
  -H 'Content-Type: application/json' \
  -d '{"first":"#ff5733","second":"#3b82f6","amount":30,"space":"oklab"}'

  • Make a CSS gradient

    GET, POST /api/v1/make-gradient

    Build a CSS gradient from 2 or more colors with interpolation in OKLab, OKLCH or sRGB. Returns modern CSS with the color space, a fallback with precomputed stops for older browsers, and the stop colors. OKLab avoids the gray middle that sRGB gradients get.

    試試看: /api/v1/make-gradient?colors=%232563eb%2C%23f97316&kind=linear&angle=90&space=oklab

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/make-gradient \
  -H 'Content-Type: application/json' \
  -d '{"colors":["#2563eb","#f97316"],"kind":"linear","angle":90,"space":"oklab"}'

  • Generate a palette

    GET, POST /api/v1/generate-palette

    Generate a harmonious palette in OKLCH. Keep colors you already have, pick a style (auto, analogous, complementary, triadic, monochromatic, pastel, vivid, muted, dark) and pass a seed to get the same palette every time.

    試試看: /api/v1/generate-palette?keep=%230f172a&mode=analogous&size=5&seed=brand

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/generate-palette \
  -H 'Content-Type: application/json' \
  -d '{"keep":["#0f172a"],"mode":"analogous","size":5,"seed":"brand"}'

  • Simulate color blindness

    GET, POST /api/v1/simulate-cvd

    Show how colors look with protanopia, deuteranopia, tritanopia and achromatopsia (Machado 2009 at full severity), and list the pairs that become hard to tell apart.

    試試看: /api/v1/simulate-cvd?colors=%23e11d48%2C%2316a34a%2C%232563eb

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/simulate-cvd \
  -H 'Content-Type: application/json' \
  -d '{"colors":["#e11d48","#16a34a","#2563eb"]}'

  • Export colors as code

    POST /api/v1/export-tokens

    Turn a list of colors into ready code: CSS custom properties, a Tailwind v4 @theme block, SCSS variables, JSON, W3C design tokens (DTCG), a JavaScript array or an SVG swatch strip. Unnamed colors get their closest color name.

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/export-tokens \
  -H 'Content-Type: application/json' \
  -d '{"colors":[{"color":"#0f172a","name":"ink"},{"color":"#f97316"}],"format":"tailwind","values":"oklch"}'

  • Build a design system

    GET, POST /api/v1/build-system

    Build a full color system from a brand color: 50–950 scales for primary, secondary, accent, neutral and status colors, light and dark theme roles, exported as a Tailwind v4 theme, CSS variables, shadcn/ui globals.css or DTCG tokens, with a contrast audit of text and surface pairs.

    試試看: /api/v1/build-system?primary=%236d4aff&format=shadcn

    POST 請求內容

    curl -X POST https://pickshade.com/api/v1/build-system \
  -H 'Content-Type: application/json' \
  -d '{"primary":"#6d4aff","format":"shadcn"}'

限制

每個 IP 位址每秒約可傳送 10 個請求，允許短暫突發。超過後 API 會回傳 429 並附上 Retry-After 標頭。不會改變的結果會快取一天，重複呼叫能立即取得。

常見問題

需要 API 金鑰嗎？

不需要。這個 API 免費且開放。直接從你的伺服器、指令碼或瀏覽器透過 HTTPS 呼叫端點即可。

支援哪些顏色格式？

任何 CSS 顏色：HEX、rgb()、hsl()、hwb()、lab()、lch()、oklab()、oklch() 和 color(display-p3 …)，以及 navy 這類 CSS 顏色名稱、royal blue 這類常見名稱，還有 sky-500 這類 Tailwind class。

錯誤會怎麼回報？

錯誤採用 application/problem+json 格式，包含 title 和說明該如何修正的 detail，例如某個字串無法辨識為顏色時。