Colors Encyclopedia

Brand colors

Substack Brand Colors

Substack palette: #FF6719, #FFFFFF, #000000. Compare HEX/RGB, WCAG contrast and CSS tokens; open independent JSON data.

Commonly referenced brand color values. This page is an independent technical reference and is not affiliated with or endorsed by Substack.

Social MediaBrand indexAPIDataset
Commonly referenced palette Substack
#FF6719#FFFFFF#000000
Listed without an implied color hierarchy

Palette

Palette color 1#FF6719RGB 255, 103, 25
White#FFFFFFRGB 255, 255, 255
Black#000000RGB 0, 0, 0

CSS Tokens

:root {
  --brand-substack-1: #FF6719;
  --brand-substack-2: #FFFFFF;
  --brand-substack-3: #000000;
}

Accessibility Snapshot

#FF6719Black 7.21:1 / White 2.91:1
#FFFFFFBlack 21:1 / White 1:1
#000000Black 1:1 / White 21:1

Brand palette context

About Substack Brand Colors

Substack is represented here by the commonly referenced values #FF6719, #FFFFFF, and #000000 in this independent social media brand color reference. The palette includes Orange and Gray color families, with no undocumented primary, secondary, or accent roles assigned.

Across 3 listed values, #000000 is darkest at luminance 0 and #FFFFFF is lightest at 1. Black gives the stronger standard-text contrast on 2 values, while white is stronger on 1; each pairing remains documented separately in the accessibility snapshot.

Commonly referenced brand color values. This page is an independent technical reference and is not affiliated with or endorsed by Substack.

Downloadable brand colors infographic

Substack Brand Colors Infographic

Save an independent infographic of the commonly referenced Substack HEX palette and its accessibility guidance. No logo or proprietary artwork is included.

1200 × 800
Substack brand colors infographic showing its commonly referenced HEX palette and accessibility guidance for every listed color without assigning a color hierarchy.
Substack brand colors infographic. Commonly referenced brand color values. This page is an independent technical reference and is not affiliated with or endorsed by Substack.
Download WebPDownload SVGOpen full size

Machine-readable data

Machine-Readable Brand Color Data (JSON)

Structured brand palette data for design systems, references, automations, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.3103
Black text7.21:1AA Pass
White text2.91:1AA Fail
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Brand
{
  "slug": "substack",
  "name": "Substack",
  "category": "social-media",
  "brandCategory": [
    "Social Media",
    "social-media"
  ],
  "url": "https://www.colorsencyclopedia.com/brand-colors/substack/",
  "categoryUrl": "https://www.colorsencyclopedia.com/brand-colors/social-media/",
  "disclaimer": "Commonly referenced brand color values. This page is an independent technical reference and is not affiliated with or endorsed by Substack."
}
Palette
[
  {
    "name": "Palette color 1",
    "hex": "#FF6719",
    "rgb": [
      255,
      103,
      25
    ],
    "hsl": [
      20,
      100,
      55
    ],
    "cmyk": [
      0,
      60,
      90,
      0
    ],
    "luminance": 0.3103,
    "contrast": {
      "black": 7.21,
      "white": 2.91
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": [
        "#000000"
      ]
    }
  },
  {
    "name": "White",
    "hex": "#FFFFFF",
    "rgb": [
      255,
      255,
      255
    ],
    "hsl": [
      0,
      0,
      100
    ],
    "cmyk": [
      0,
      0,
      0,
      0
    ],
    "luminance": 1,
    "contrast": {
      "black": 21,
      "white": 1
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "AAA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  },
  {
    "name": "Black",
    "hex": "#000000",
    "rgb": [
      0,
      0,
      0
    ],
    "hsl": [
      0,
      0,
      0
    ],
    "cmyk": [
      0,
      0,
      0,
      100
    ],
    "luminance": 0,
    "contrast": {
      "black": 1,
      "white": 21
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    }
  }
]
AI context
{
  "brandUseCases": [
    "social UI",
    "creator tools",
    "share graphics",
    "brand reference",
    "design systems",
    "CSS tokens",
    "accessibility checks"
  ],
  "semanticGroups": [
    "social media brand colors",
    "orange brand palette",
    "gray brand palette",
    "warm brand palette",
    "neutral brand palette",
    "vibrant brand color",
    "light brand color",
    "dark brand color",
    "Substack color reference"
  ],
  "contrastSafeWith": [
    "#000000",
    "#1A1A1A",
    "#36454F",
    "#FFFFFF",
    "#F5F5F5"
  ],
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/brand-colors/substack.json",
    "https://www.colorsencyclopedia.com/api/brand-colors.json"
  ]
}
CSS tokens
{
  "css": "--brand-substack-1: #FF6719;\n--brand-substack-2: #FFFFFF;\n--brand-substack-3: #000000;"
}
Accessibility
[
  {
    "hex": "#FF6719",
    "contrast": {
      "black": 7.21,
      "white": 2.91
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": [
        "#000000"
      ]
    }
  },
  {
    "hex": "#FFFFFF",
    "contrast": {
      "black": 21,
      "white": 1
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "AAA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  },
  {
    "hex": "#000000",
    "contrast": {
      "black": 1,
      "white": 21
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    }
  }
]
Full JSON dataset 
{
  "slug": "substack",
  "name": "Substack",
  "category": "social-media",
  "brandCategory": [
    "Social Media",
    "social-media"
  ],
  "disclaimer": "Commonly referenced brand color values. This page is an independent technical reference and is not affiliated with or endorsed by Substack.",
  "datasetVersion": "1.0.0",
  "url": "https://www.colorsencyclopedia.com/brand-colors/substack/",
  "categoryUrl": "https://www.colorsencyclopedia.com/brand-colors/social-media/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/brand-colors/substack.json",
  "colors": [
    {
      "name": "Palette color 1",
      "hex": "#FF6719",
      "rgb": [
        255,
        103,
        25
      ],
      "hsl": [
        20,
        100,
        55
      ],
      "cmyk": [
        0,
        60,
        90,
        0
      ],
      "luminance": 0.3103,
      "contrast": {
        "black": 7.21,
        "white": 2.91
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": [
          "#000000"
        ]
      }
    },
    {
      "name": "White",
      "hex": "#FFFFFF",
      "rgb": [
        255,
        255,
        255
      ],
      "hsl": [
        0,
        0,
        100
      ],
      "cmyk": [
        0,
        0,
        0,
        0
      ],
      "luminance": 1,
      "contrast": {
        "black": 21,
        "white": 1
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      }
    },
    {
      "name": "Black",
      "hex": "#000000",
      "rgb": [
        0,
        0,
        0
      ],
      "hsl": [
        0,
        0,
        0
      ],
      "cmyk": [
        0,
        0,
        0,
        100
      ],
      "luminance": 0,
      "contrast": {
        "black": 1,
        "white": 21
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      }
    }
  ],
  "brandUseCases": [
    "social UI",
    "creator tools",
    "share graphics",
    "brand reference",
    "design systems",
    "CSS tokens",
    "accessibility checks"
  ],
  "semanticGroups": [
    "social media brand colors",
    "orange brand palette",
    "gray brand palette",
    "warm brand palette",
    "neutral brand palette",
    "vibrant brand color",
    "light brand color",
    "dark brand color",
    "Substack color reference"
  ],
  "contrastSafeWith": [
    "#000000",
    "#1A1A1A",
    "#36454F",
    "#FFFFFF",
    "#F5F5F5"
  ],
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/brand-colors/substack.json",
    "https://www.colorsencyclopedia.com/api/brand-colors.json"
  ]
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

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