# Burger King gradient

Gradients derived from Burger King's published colour tokens (nominative use; no brand assets). Deterministic: the same values are served as `--brand-gradient*` in the brand's brand.css.

- Page: https://brandsweets.com/gradients/brands/bk-com
- Brand colors: https://brandsweets.com/colors/brands/bk-com · Brand page: https://brandsweets.com/b/bk-com
- Palette: primary #d62300, secondary #ff8732, accents #502314
- Source: https://bk.com (extracted 2026-09-03)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #d62300 0%, #ff8732 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#d62300] to-[#ff8732]`
- Contrast (worst point): white 2.40:1 fail · black 4.10:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.d62300-ff8732?a=135

## Hero background

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).

- CSS: `linear-gradient(135deg in oklab, #662e23 0%, #966c54 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#662e23] to-[#966c54]`
- Contrast (worst point): white 4.59:1 AA · black 1.98:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.662e23-966c54?a=135

## Button / CTA

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).

- CSS: `linear-gradient(180deg in oklch shorter hue, #d62300 0%, #b90000 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#d62300] to-[#b90000]`
- Contrast (worst point): white 5.12:1 AA · black 3.06:1 AA-large · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.d62300-b90000?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #e13114 0%, #c40000 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #cb1000 0%, #ab0000 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #ff785e 0%, #d62300 50%, #890000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#ff785e] via-[#d62300] to-[#890000]`
- Contrast (worst point): white 2.59:1 fail · black 2.06:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.ff785e-d62300-890000?a=135&in=oklch&hue=shorter

## Analogous

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

- CSS: `linear-gradient(135deg in oklab, #d62300 0%, #d4006b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#d62300] to-[#d4006b]`
- Contrast (worst point): white 5.11:1 AA · black 4.01:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.d62300-d4006b?a=135

## Complementary

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

- CSS: `linear-gradient(135deg in oklch shorter hue, #d62300 0%, #008496 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#d62300] to-[#008496]`
- Contrast (worst point): white 4.21:1 AA-large · black 4.10:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.d62300-008496?a=135&in=oklch&hue=shorter

## Triadic

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

- CSS: `linear-gradient(135deg in oklab, #d62300 0%, #008d46 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#d62300] to-[#008d46]`
- Contrast (worst point): white 4.27:1 AA-large · black 4.09:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.d62300-008d46?a=135

## CSS custom properties (brand.css)

```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;
}
```

## Gradient maker

Every maker URL is the gradient's state: `/gradients/new/v1.<hex>-<hex>[_pos]?a=135&in=oklch&hue=shorter&e=soft&g=8`. Hand one to a human, let them refine, and read the link they return.

## Connect an agent

Point any MCP client at the BrandSweets gradients endpoint for the same engine and corpus:

- Endpoint: https://mcp.brandsweets.com/gradients/mcp
- Tools: `make_gradient` (2–5 colours → CSS with the interpolation space, Tailwind v4, SVG, PNG URL, DTCG token + the contrast/banding/gamut report), `brand_gradients` (brand slug or palette → brand gradient, hero, button, variants).
- Resource: `gradients://corpus` — the whole bundled corpus as JSON.