# Taco Bell gradient

Gradients derived from Taco Bell'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/tacobell-com
- Brand colors: https://brandsweets.com/colors/brands/tacobell-com · Brand page: https://brandsweets.com/b/tacobell-com
- Palette: primary #501098, secondary #9a23f8, accents #5cb8b2
- Source: https://tacobell.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #501098 0%, #9a23f8 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#501098] to-[#9a23f8]`
- Contrast (worst point): white 5.29:1 AA · black 1.87:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.501098-9a23f8?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). Passes AA for that ink at the worst point (4.69:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklab, #453961 0%, #8268a6 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#453961] to-[#8268a6]`
- Contrast (worst point): white 4.69:1 AA · black 2.01:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.453961-8268a6?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. White ink passes AA on the surface and both states (worst 8.35:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #5a22a5 0%, #46008b 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#5a22a5] to-[#46008b]`
- Contrast (worst point): white 9.52:1 AA · black 1.63:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.5a22a5-46008b?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #622daf 0%, #4d0a95 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #53159b 0%, #3e0080 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #8152d4 0%, #501098 50%, #1f0047 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#8152d4] via-[#501098] to-[#1f0047]`
- Contrast (worst point): white 5.13:1 AA · black 1.15:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.8152d4-501098-1f0047?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, #501098 0%, #1115bd 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#501098] to-[#1115bd]`
- Contrast (worst point): white 11.17:1 AA · black 1.86:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.501098-1115bd?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, #501098 0%, #3f4608 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#501098] to-[#3f4608]`
- Contrast (worst point): white 10.01:1 AA · black 1.86:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.501098-3f4608?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, #501098 0%, #633308 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#501098] to-[#633308]`
- Contrast (worst point): white 10.40:1 AA · black 1.87:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.501098-633308?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 5.29:1 AA, black 1.87:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #501098 0%, #9a23f8 100%);
  /* hero — worst-case contrast: white 4.69:1 AA, black 2.01:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #453961 0%, #8268a6 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 9.52:1 AA, black 1.63:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #5a22a5 0%, #46008b 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #622daf 0%, #4d0a95 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #53159b 0%, #3e0080 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.