Seashell — 11-step color scale

Seashell (#fff5ee) sits at 500, untouched. Every other step is Seashell composited over white or black at a decreasing opacity, so the whole ramp stays in one hue family instead of drifting toward another color at the ends.

Open Seashell in the generator

8%50

24%100

40%200

56%300

80%400

100%500your color

80%600

56%700

40%800

24%900

8%950

Each step is the base composited over white or black at the opacity shown.#fff5ee

For text that needs to pass AA on white, 800, 900, 950 clear the 4.5:1 line. On a dark surface, 50, 100, 200, 300, 400, 500, 600, 700 do.

Semantic colors from Seashell

Success, warning, error and the rest are derived from Seashell itself, then checked so they stay distinguishable from the base — and from each other — under the three types of color blindness. The distance below is CIEDE2000 after each simulation.

Derived from #fff5ee

Suggested	Protanopia	Deuteranopia	Tritanopia
success#8fba9f	16.6	17.6	29.4
warning#c8a185	22.1	20.8	23.6
error#c9a0ba	22.7	20.1	21.4
discovery#9eadd5	25.3	27.5	27.3
info#80b9c1	18.4	23.1	33.0
neutral#afa49d	19.7	19.5	19.6

CIEDE2000 distance from the base under each simulation. The lowest of the three decides, and a dot marks the ones that land under 11.

Every suggested color clears ΔE₀₀ 11 from Seashell under all three simulations, so nothing needed nudging — the family hues sit far enough from Seashell on their own.

Export Seashell

The same five formats the generator produces, for this scale. Copy any block, or open the tool to tweak the ramp first.

CSS

:root {
  --color-color-50: #fffefe;
  --color-color-100: #fffdfb;
  --color-color-200: #fffbf8;
  --color-color-300: #fff9f5;
  --color-color-400: #fff7f1;
  --color-color-500: #fff5ee;
  --color-color-600: #ccc4be;
  --color-color-700: #8f8985;
  --color-color-800: #66625f;
  --color-color-900: #3d3b39;
  --color-color-950: #141413;
}

SCSS

$color-color-50: #fffefe;
$color-color-100: #fffdfb;
$color-color-200: #fffbf8;
$color-color-300: #fff9f5;
$color-color-400: #fff7f1;
$color-color-500: #fff5ee;
$color-color-600: #ccc4be;
$color-color-700: #8f8985;
$color-color-800: #66625f;
$color-color-900: #3d3b39;
$color-color-950: #141413;

JavaScript

export const color = {
  50: '#fffefe',
  100: '#fffdfb',
  200: '#fffbf8',
  300: '#fff9f5',
  400: '#fff7f1',
  500: '#fff5ee',
  600: '#ccc4be',
  700: '#8f8985',
  800: '#66625f',
  900: '#3d3b39',
  950: '#141413',
};

JSON

{
  "color": {
    "50": "#fffefe",
    "100": "#fffdfb",
    "200": "#fffbf8",
    "300": "#fff9f5",
    "400": "#fff7f1",
    "500": "#fff5ee",
    "600": "#ccc4be",
    "700": "#8f8985",
    "800": "#66625f",
    "900": "#3d3b39",
    "950": "#141413"
  }
}

Figma Variables

{
  "color": {
    "50": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          1,
          0.996078431372549,
          0.996078431372549
        ],
        "alpha": 1,
        "hex": "#FFFEFE"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:1",
        "com.figma.isOverride": true
      }
    },
    "100": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          1,
          0.9921568627450981,
          0.984313725490196
        ],
        "alpha": 1,
        "hex": "#FFFDFB"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:2",
        "com.figma.isOverride": true
      }
    },
    "200": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          1,
          0.984313725490196,
          0.9725490196078431
        ],
        "alpha": 1,
        "hex": "#FFFBF8"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:3",
        "com.figma.isOverride": true
      }
    },
    "300": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          1,
          0.9764705882352941,
          0.9607843137254902
        ],
        "alpha": 1,
        "hex": "#FFF9F5"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:4",
        "com.figma.isOverride": true
      }
    },
    "400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          1,
          0.9686274509803922,
          0.9450980392156862
        ],
        "alpha": 1,
        "hex": "#FFF7F1"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:5",
        "com.figma.isOverride": true
      }
    },
    "500": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          1,
          0.9607843137254902,
          0.9333333333333333
        ],
        "alpha": 1,
        "hex": "#FFF5EE"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:6",
        "com.figma.isOverride": true
      }
    },
    "600": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.8,
          0.7686274509803922,
          0.7450980392156863
        ],
        "alpha": 1,
        "hex": "#CCC4BE"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:7",
        "com.figma.isOverride": true
      }
    },
    "700": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.5607843137254902,
          0.5372549019607843,
          0.5215686274509804
        ],
        "alpha": 1,
        "hex": "#8F8985"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:8",
        "com.figma.isOverride": true
      }
    },
    "800": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.4,
          0.3843137254901961,
          0.37254901960784315
        ],
        "alpha": 1,
        "hex": "#66625F"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:9",
        "com.figma.isOverride": true
      }
    },
    "900": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.23921568627450981,
          0.23137254901960785,
          0.2235294117647059
        ],
        "alpha": 1,
        "hex": "#3D3B39"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:10",
        "com.figma.isOverride": true
      }
    },
    "950": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.0784313725490196,
          0.0784313725490196,
          0.07450980392156863
        ],
        "alpha": 1,
        "hex": "#141413"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:11",
        "com.figma.isOverride": true
      }
    }
  },
  "$extensions": {
    "com.figma.modeName": "Value"
  }
}

Open Seashell in the generator How the scale is built