Brand gradient

Burger King gradient

The gradient Burger King'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.

Source
bk.com
Extracted
Version
7
Verified from the live site at bk.com on 3 September 2026 (version 7).
Burger King
black text · worst 4.10:1 · AA large
white 2.40 failsblack 4.10 AA largebanding high

Hero and button

Aa

Hero background

Open in maker →

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.18 until the ink passes AA at the worst point (4.59:1).

white 4.59 AAblack 1.98 failsbanding high
css
linear-gradient(135deg in oklab, #662e23 0%, #966c54 100%)
tailwind v4
bg-linear-to-br/oklab from-[#662e23] to-[#966c54]
Aa

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. L shifted −0.04 so white ink passes AA on the surface and both states (worst 4.51:1).

white 5.12 AAblack 3.06 AA largebanding high
Get started
hover
active
label ink passes AA on all three
css
linear-gradient(180deg in oklch shorter hue, #d62300 0%, #b90000 100%)
tailwind v4
bg-linear-to-b/oklch from-[#d62300] to-[#b90000]

Variants

Aa
white 2.59 failsblack 2.06 failsbanding high
css
linear-gradient(135deg in oklch shorter hue, #ff785e 0%, #d62300 50%, #890000 100%)
tailwind v4
bg-linear-to-br/oklch from-[#ff785e] via-[#d62300] to-[#890000]
Aa

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

white 5.11 AAblack 4.01 AA largebanding high
css
linear-gradient(135deg in oklab, #d62300 0%, #d4006b 100%)
tailwind v4
bg-linear-to-br/oklab from-[#d62300] to-[#d4006b]
Aa

Complementary

Open in maker →

Partner hue from the complementary rule at the source colour's lightness. ΔH 180° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

white 4.21 AA largeblack 4.10 AA largebanding medium
css
linear-gradient(135deg in oklch shorter hue, #d62300 0%, #008496 100%)
tailwind v4
bg-linear-to-br/oklch from-[#d62300] to-[#008496]
Aa

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

white 4.27 AA largeblack 4.09 AA largebanding medium
css
linear-gradient(135deg in oklab, #d62300 0%, #008d46 100%)
tailwind v4
bg-linear-to-br/oklab from-[#d62300] to-[#008d46]

Report — brand gradient

  • white ink: worst 2.40:1 at 100% (fails AA); black ink: worst 4.10:1 at 0% (AA-large only) → use black text.
  • Body text fails AA everywhere on this gradient; large text (≥24px / 19px bold) is fine. Add a scrim or lower the chroma for body copy.
  • Banding high: ~14px bands at 1440px — add grain 30 (≈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 2.40:1, black 4.10:1 AA-large */
  --brand-gradient: linear-gradient(135deg in oklab, #d62300 0%, #ff8732 100%);
  /* hero — worst-case contrast: white 4.59:1 AA, black 1.98:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #662e23 0%, #966c54 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.12:1 AA, black 3.06:1 AA-large */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #d62300 0%, #b90000 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #e13114 0%, #c40000 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #cb1000 0%, #ab0000 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="#d62300"/><stop offset="7.14%" stop-color="#d92e04"/><stop offset="14.29%" stop-color="#dc3709"/><stop offset="21.43%" stop-color="#df3f0e"/><stop offset="28.57%" stop-color="#e24712"/><stop offset="35.71%" stop-color="#e54e15"/><stop offset="42.86%" stop-color="#e85519"/><stop offset="50%" stop-color="#eb5c1c"/><stop offset="57.14%" stop-color="#ee6220"/><stop offset="64.29%" stop-color="#f16923"/><stop offset="71.43%" stop-color="#f46f26"/><stop offset="78.57%" stop-color="#f77529"/><stop offset="85.71%" stop-color="#fa7b2c"/><stop offset="92.86%" stop-color="#fc812f"/><stop offset="100%" stop-color="#ff8732"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg · tokens.json
{
  "gradient": {
    "brand": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.839,
              0.137,
              0
            ],
            "hex": "#d62300"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              1,
              0.529,
              0.196
            ],
            "hex": "#ff8732"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #d62300 0%, #ff8732 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "brand",
          "contrast": {
            "white": {
              "ratio": 2.396,
              "at": 1,
              "passesAA": false,
              "passesAALarge": false
            },
            "black": {
              "ratio": 4.1,
              "at": 0,
              "passesAA": false,
              "passesAALarge": true
            },
            "suggestedInk": "#000000"
          }
        }
      },
      "$description": "The canonical brand gradient (--brand-gradient)."
    },
    "hero": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.4,
              0.18,
              0.137
            ],
            "hex": "#662e23"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.588,
              0.424,
              0.329
            ],
            "hex": "#966c54"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(135deg in oklab, #662e23 0%, #966c54 100%)",
          "interpolation": "oklab",
          "angle": 135,
          "name": "hero",
          "ink": "#ffffff",
          "contrast": {
            "white": {
              "ratio": 4.595,
              "at": 1,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 1.98,
              "at": 0,
              "passesAA": false,
              "passesAALarge": false
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Low-chroma hero background with a text-safe ink (--brand-gradient-hero)."
    },
    "button": {
      "$type": "gradient",
      "$value": [
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.839,
              0.137,
              0
            ],
            "hex": "#d62300"
          },
          "position": 0
        },
        {
          "color": {
            "colorSpace": "srgb",
            "components": [
              0.725,
              0,
              0
            ],
            "hex": "#b90000"
          },
          "position": 1
        }
      ],
      "$extensions": {
        "com.brandsweets": {
          "kind": "linear",
          "css": "linear-gradient(180deg in oklch shorter hue, #d62300 0%, #b90000 100%)",
          "interpolation": "oklch",
          "hue": "shorter",
          "angle": 180,
          "name": "button",
          "ink": "#ffffff",
          "states": {
            "hover": "linear-gradient(180deg in oklch shorter hue, #e13114 0%, #c40000 100%)",
            "active": "linear-gradient(180deg in oklch shorter hue, #cb1000 0%, #ab0000 100%)"
          },
          "contrast": {
            "white": {
              "ratio": 5.122,
              "at": 0,
              "passesAA": true,
              "passesAALarge": true
            },
            "black": {
              "ratio": 3.063,
              "at": 1,
              "passesAA": false,
              "passesAALarge": true
            },
            "suggestedInk": "#ffffff"
          }
        }
      },
      "$description": "Button / CTA surface with hover and active states (--brand-gradient-button)."
    }
  }
}

Colours

mcpConnect your agent — Burger King'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 bk-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.

Burger King 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 Burger King. Owner of this brand? Request a correction or removal → Machine-readable: gradients.md