Brand gradient

Dunkin' gradient

The gradient Dunkin''s published colour tokens imply, derived by a pure function of the palette: primary → secondary in OKLab (OKLCH shorter hue when the hues are more than 140° apart; a tonal ramp when they are within ΔE 0.15), then a hero background with an ink that passes AA at the worst point along the line, a button surface with hover and active states, and the variant contact sheet. Same inputs, same gradients, forever — which is what makes them citable; the same values are served as --brand-gradient in the brand's brand.css.

#3e342f #0000ee #c63663

Open in the maker Dunkin' colors →Full brand page →food-bev

Source: dunkindonuts.com
Extracted: 2 September 2026
Version: 2

Dunkin'

white text · worst 9.34:1 · AA

white 9.34 AAblack 1.74 failsbanding medium

Hero and button

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). Passes AA for that ink at the worst point (8.21:1) without adjusting L.

white 8.21 AAblack 1.75 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #393634 0%, #324d88 100%)

tailwind v4

bg-linear-to-br/oklch from-[#393634] to-[#324d88]

Button / CTA

Open in maker →

ΔL 0.08 top→bottom in the primary's hue (a lit surface, not a rainbow); hover L +0.03, active L −0.03. White ink passes AA on the surface and both states (worst 9.12:1).

white 10.34 AAblack 1.50 failsbanding high

Get started

hover

active

label ink passes AA on all three

css

linear-gradient(180deg in oklch shorter hue, #493e39 0%, #342a25 100%)

tailwind v4

bg-linear-to-b/oklch from-[#493e39] to-[#342a25]

Variants

Tonal ramp

Open in maker →

white 5.65 AAblack 1.07 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #70655f 0%, #3e342f 50%, #120a06 100%)

tailwind v4

bg-linear-to-br/oklch from-[#70655f] via-[#3e342f] to-[#120a06]

Analogous

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Partner hue from the analogous rule at the source colour's lightness.

white 12.03 AAblack 1.71 failsbanding high

css

linear-gradient(135deg in oklab, #3e342f 0%, #423132 100%)

tailwind v4

bg-linear-to-br/oklab from-[#3e342f] to-[#423132]

Complementary

Open in maker →

Partner hue from the complementary rule at the source colour's lightness. ΔH 174° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

white 11.87 AAblack 1.73 failsbanding high

css

linear-gradient(135deg in oklch shorter hue, #3e342f 0%, #30383b 100%)

tailwind v4

bg-linear-to-br/oklch from-[#3e342f] to-[#30383b]

Triadic

Open in maker →

Partner hue from the triadic rule at the source colour's lightness.

white 11.88 AAblack 1.73 failsbanding high

css

linear-gradient(135deg in oklab, #3e342f 0%, #303935 100%)

tailwind v4

bg-linear-to-br/oklab from-[#3e342f] to-[#303935]

Report — brand gradient

white ink: worst 9.34:1 at 96% (AA); black ink: worst 1.74:1 at 0% (fails AA) → use white text.
Banding medium: ~8px bands at 1440px — add grain 15 (≈2% soft-light noise) or shorten the ramp.

Export

The custom properties below are byte-identical to the gradient block in brand.css; the DTCG token is what tokens.json carries.

css custom properties · brand.css

:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 9.34:1 AA, black 1.74:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #3e342f 0%, #0000ee 100%);
  /* hero — worst-case contrast: white 8.21:1 AA, black 1.75:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #393634 0%, #324d88 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 10.34:1 AA, black 1.50:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #493e39 0%, #342a25 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #514641 0%, #3b312d 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #413732 0%, #2c231e 100%);
  --brand-gradient-button-ink: #ffffff;
}

svg · brand gradient

<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="600" viewBox="0 0 1440 600"><defs><linearGradient id="bs-gradient" gradientUnits="userSpaceOnUse" x1="210" y1="-210" x2="1230" y2="810"><stop offset="0%" stop-color="#3e342f"/><stop offset="7.14%" stop-color="#49322a"/><stop offset="14.29%" stop-color="#542e29"/><stop offset="21.43%" stop-color="#5d292d"/><stop offset="28.57%" stop-color="#652335"/><stop offset="35.71%" stop-color="#6c1c40"/><stop offset="42.86%" stop-color="#70154f"/><stop offset="50%" stop-color="#710e61"/><stop offset="57.14%" stop-color="#700575"/><stop offset="64.29%" stop-color="#6c008b"/><stop offset="71.43%" stop-color="#6500a2"/><stop offset="78.57%" stop-color="#5b00b8"/><stop offset="85.71%" stop-color="#4d00cd"/><stop offset="92.86%" stop-color="#3800e0"/><stop offset="100%" stop-color="#0000ee"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg · tokens.json

{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.243,
              0.204,
              0.184
            ],
            "hex": "#3e342f"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0,
              0,
              0.933
            ],
            "hex": "#0000ee"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #3e342f 0%, #0000ee 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 9.341,
              "at": 0.9614,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.737,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.224,
              0.212,
              0.204
            ],
            "hex": "#393634"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.196,
              0.302,
              0.533
            ],
            "hex": "#324d88"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklch shorter hue, #393634 0%, #324d88 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 8.21,
              "at": 0.9977,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.751,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.286,
              0.243,
              0.224
            ],
            "hex": "#493e39"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.204,
              0.165,
              0.145
            ],
            "hex": "#342a25"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #493e39 0%, #342a25 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #514641 0%, #3b312d 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #413732 0%, #2c231e 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 10.338,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.504,
              "at": 0.9841,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

#3e342f #0000ee #c63663

mcpConnect your agent — Dunkin''s gradients on demand

live endpoint

Point any MCP client at the shared gradients endpoint and your agent gets the same engine as this page — make_gradient returns CSS with the interpolation space, Tailwind v4, SVG, a PNG URL, a DTCG token and the contrast report in one call; brand_gradients derives the whole contact sheet from a brand or a palette. Read-only, no key. Every gradient is a /gradients/new/… link: open it, refine, paste it back.

endpointhttps://mcp.brandsweets.com/gradients/mcp

claude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp

try this prompt

›brand_gradients for dunkindonuts-com — give me the hero CSS and the ink that passes AA, then a version in oklch

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Dunkin' and its marks belong to their owner. This page uses the name nominatively to describe gradients derived from the brand's published colour values; it does not reproduce logos or other brand assets, and it is not affiliated with or endorsed by Dunkin'. Owner of this brand? Request a correction or removal → Machine-readable: gradients.md