# Audi gradient

Gradients derived from Audi'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/audi-com
- Brand colors: https://brandsweets.com/colors/brands/audi-com · Brand page: https://brandsweets.com/b/audi-com
- Palette: primary #2c343f, secondary #181d25, accents #ff3e41
- Source: https://audi.com (extracted 2026-09-02)

## Brand gradient

ΔE_OK 0.093 < 0.15 between #2c343f and #181d25 — a 2-stop would read as a flat fill, so this is a tonal ramp of #2c343f.

- CSS: `linear-gradient(135deg in oklch shorter hue, #5c6571 0%, #2c343f 50%, #040a13 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#5c6571] via-[#2c343f] to-[#040a13]`
- Contrast (worst point): white 5.91:1 AA · black 1.06:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.5c6571-2c343f-040a13?a=135&in=oklch&hue=shorter

## 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 (5.94:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklch shorter hue, #616469 0%, #313437 50%, #070a0d 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#616469] via-[#313437] to-[#070a0d]`
- Contrast (worst point): white 5.94:1 AA · black 1.06:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.616469-313437-070a0d?a=135&in=oklch&hue=shorter

## 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 9.53:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #363e4a 0%, #222a35 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#363e4a] to-[#222a35]`
- Contrast (worst point): white 10.80:1 AA · black 1.45:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.363e4a-222a35?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #3e4652 0%, #2a313c 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #2e3742 0%, #1b232d 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #5c6571 0%, #2c343f 50%, #040a13 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#5c6571] via-[#2c343f] to-[#040a13]`
- Contrast (worst point): white 5.91:1 AA · black 1.06:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.5c6571-2c343f-040a13?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, #2c343f 0%, #2d3538 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#2c343f] to-[#2d3538]`
- Contrast (worst point): white 12.47:1 AA · black 1.66:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.2c343f-2d3538?a=135

## Complementary

Partner hue from the complementary rule at the source colour's lightness. ΔH 175° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

- CSS: `linear-gradient(135deg in oklch shorter hue, #2c343f 0%, #37332c 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#2c343f] to-[#37332c]`
- Contrast (worst point): white 12.39:1 AA · black 1.66:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.2c343f-37332c?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, #2c343f 0%, #402e2f 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#2c343f] to-[#402e2f]`
- Contrast (worst point): white 12.52:1 AA · black 1.64:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.2c343f-402e2f?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 5.91:1 AA, black 1.06:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #5c6571 0%, #2c343f 50%, #040a13 100%);
  /* hero — worst-case contrast: white 5.94:1 AA, black 1.06:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #616469 0%, #313437 50%, #070a0d 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 10.80:1 AA, black 1.45:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #363e4a 0%, #222a35 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #3e4652 0%, #2a313c 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #2e3742 0%, #1b232d 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.