Firebrick — 11-step color scale

Firebrick (#b22222) sits at 500, untouched. Every other step is Firebrick 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 Firebrick 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.#b22222

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

Semantic colors from Firebrick

Success, warning, error and the rest are derived from Firebrick 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 #b22222

Suggested	Protanopia	Deuteranopia	Tritanopia
success#007737	13.2	7.6	58.6
warning#a83700	6.7	2.6	3.7
error#bb336f	30.1	19.5	9.7
discovery#4751c6	48.0	55.8	58.7
info#006b94	37.7	45.1	53.8
neutral#766060	17.4	18.6	22.1

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

The warning suggestion starts out colliding with Firebrick under Deuteranopia — ΔE₀₀ 2.6, below the 11 threshold — so the engine shifts its hue within the warning family until the pair pulls apart again.

Export Firebrick

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: #f9eded;
  --color-color-100: #edcaca;
  --color-color-200: #e0a7a7;
  --color-color-300: #d48383;
  --color-color-400: #c14e4e;
  --color-color-500: #b22222;
  --color-color-600: #8e1b1b;
  --color-color-700: #641313;
  --color-color-800: #470e0e;
  --color-color-900: #2b0808;
  --color-color-950: #0e0303;
}

SCSS

$color-color-50: #f9eded;
$color-color-100: #edcaca;
$color-color-200: #e0a7a7;
$color-color-300: #d48383;
$color-color-400: #c14e4e;
$color-color-500: #b22222;
$color-color-600: #8e1b1b;
$color-color-700: #641313;
$color-color-800: #470e0e;
$color-color-900: #2b0808;
$color-color-950: #0e0303;

JavaScript

export const color = {
  50: '#f9eded',
  100: '#edcaca',
  200: '#e0a7a7',
  300: '#d48383',
  400: '#c14e4e',
  500: '#b22222',
  600: '#8e1b1b',
  700: '#641313',
  800: '#470e0e',
  900: '#2b0808',
  950: '#0e0303',
};

JSON

{
  "color": {
    "50": "#f9eded",
    "100": "#edcaca",
    "200": "#e0a7a7",
    "300": "#d48383",
    "400": "#c14e4e",
    "500": "#b22222",
    "600": "#8e1b1b",
    "700": "#641313",
    "800": "#470e0e",
    "900": "#2b0808",
    "950": "#0e0303"
  }
}

Figma Variables

{
  "color": {
    "50": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.9764705882352941,
          0.9294117647058824,
          0.9294117647058824
        ],
        "alpha": 1,
        "hex": "#F9EDED"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:1",
        "com.figma.isOverride": true
      }
    },
    "100": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.9294117647058824,
          0.792156862745098,
          0.792156862745098
        ],
        "alpha": 1,
        "hex": "#EDCACA"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:2",
        "com.figma.isOverride": true
      }
    },
    "200": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.8784313725490196,
          0.6549019607843137,
          0.6549019607843137
        ],
        "alpha": 1,
        "hex": "#E0A7A7"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:3",
        "com.figma.isOverride": true
      }
    },
    "300": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.8313725490196079,
          0.5137254901960784,
          0.5137254901960784
        ],
        "alpha": 1,
        "hex": "#D48383"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:4",
        "com.figma.isOverride": true
      }
    },
    "400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.7568627450980392,
          0.3058823529411765,
          0.3058823529411765
        ],
        "alpha": 1,
        "hex": "#C14E4E"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:5",
        "com.figma.isOverride": true
      }
    },
    "500": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.6980392156862745,
          0.13333333333333333,
          0.13333333333333333
        ],
        "alpha": 1,
        "hex": "#B22222"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:6",
        "com.figma.isOverride": true
      }
    },
    "600": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.5568627450980392,
          0.10588235294117647,
          0.10588235294117647
        ],
        "alpha": 1,
        "hex": "#8E1B1B"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:7",
        "com.figma.isOverride": true
      }
    },
    "700": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.39215686274509803,
          0.07450980392156863,
          0.07450980392156863
        ],
        "alpha": 1,
        "hex": "#641313"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:8",
        "com.figma.isOverride": true
      }
    },
    "800": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.2784313725490196,
          0.054901960784313725,
          0.054901960784313725
        ],
        "alpha": 1,
        "hex": "#470E0E"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:9",
        "com.figma.isOverride": true
      }
    },
    "900": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.16862745098039217,
          0.03137254901960784,
          0.03137254901960784
        ],
        "alpha": 1,
        "hex": "#2B0808"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:10",
        "com.figma.isOverride": true
      }
    },
    "950": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [
          0.054901960784313725,
          0.011764705882352941,
          0.011764705882352941
        ],
        "alpha": 1,
        "hex": "#0E0303"
      },
      "$extensions": {
        "com.figma.variableId": "VariableID:1:11",
        "com.figma.isOverride": true
      }
    }
  },
  "$extensions": {
    "com.figma.modeName": "Value"
  }
}

Open Firebrick in the generator How the scale is built