PickShade color tools

Measured conclusion: Alive, not deep-tested. L2 outcome: not_attempted.

18 color tools: OKLCH, WCAG and APCA contrast fixes, palettes, gradients, color blindness, tokens.

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Copy this into your MCP client config:

{
  "mcpServers": {
    "PickShade color tools": {
      "url": "https://pickshade.com/api/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (18)

• parse_color read-only

  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.

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • locale — string — Language for color names

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• convert_color read-only

  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.

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • formats — array — Formats to return. Defaults to hex, rgb, hsl, oklch, oklab and display-p3

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• find_colors read-only

  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.

  Parameters:

  • query (required) — string — Words to look for in color names
  • limit — integer
  • locale — string — Language for color names

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• check_contrast read-only

  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.

  Parameters:

  • text (required) — string — Text or foreground color
  • background (required) — string — Background color

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• fix_contrast read-only

  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.

  Parameters:

  • text (required) — string — Text or foreground color
  • background (required) — string — Background color
  • adjust — string
  • target — string

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• audit_palette read-only

  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.

  Parameters:

  • colors (required) — array — Palette colors, 2 to 12

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• check_gamut read-only

  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).

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• nearest_names read-only

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

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • limit — integer
  • locale — string — Language for color names

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• compare_colors read-only

  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.

  Parameters:

  • first (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • second (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• generate_scale read-only

  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.

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• tints_shades read-only

  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.

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • steps — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• harmonies read-only

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

  Parameters:

  • color (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • kind — string — One harmony. All harmonies when omitted

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• mix_colors read-only

  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.

  Parameters:

  • first (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • second (required) — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • space — string
  • amount — number — Share of the second color in percent

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• make_gradient read-only

  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.

  Parameters:

  • colors (required) — array — Gradient stops in order, 2 to 12
  • kind — string
  • angle — number — Angle in degrees for linear
  • space — string
  • stops — integer — How many precomputed stops the fallback gets

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• generate_palette read-only

  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.

  Parameters:

  • keep — array — Colors that must stay in the palette, in order
  • mode — string
  • seed — string — Any text. The same seed gives the same palette
  • size — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• simulate_cvd read-only

  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.

  Parameters:

  • colors (required) — array
  • kinds — array

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• export_tokens read-only

  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.

  Parameters:

  • colors (required) — array
  • format — string
  • values — string — How color values are written

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• build_system read-only

  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.

  Parameters:

  • primary (required) — string — Brand or primary color
  • name — string
  • accent — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • format — string
  • values — string
  • neutral — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500
  • secondary — string — Any color: #ff5733, rgb(255 87 51), hsl(11 100% 60%), oklch(68% 0.21 34), a CSS or common name like navy, or a Tailwind class like sky-500

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

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