# Hyundai gradient

Gradients derived from Hyundai'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/hyundaiusa-com
- Brand colors: https://brandsweets.com/colors/brands/hyundaiusa-com · Brand page: https://brandsweets.com/b/hyundaiusa-com
- Palette: primary #002c5f, secondary #e63312, accents #002c5e
- Source: https://hyundaiusa.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #002c5f 0%, #e63312 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#002c5f] to-[#e63312]`
- Contrast (worst point): white 4.33:1 AA-large · black 1.53:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.002c5f-e63312?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.03 until the ink passes AA at the worst point (4.56:1).

- CSS: `linear-gradient(135deg in oklab, #1c2837 0%, #a1675b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#1c2837] to-[#a1675b]`
- Contrast (worst point): white 4.56:1 AA · black 1.41:1 fail · banding medium · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.1c2837-a1675b?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 10.53:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #0b376b 0%, #002153 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#0b376b] to-[#002153]`
- Contrast (worst point): white 11.84:1 AA · black 1.34:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.0b376b-002153?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #153f74 0%, #00295c 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #022f62 0%, #00194b 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #345e96 0%, #002c5f 50%, #00002b 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#345e96] via-[#002c5f] to-[#00002b]`
- Contrast (worst point): white 6.59:1 AA · black 1.03:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.345e96-002c5f-00002b?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, #002c5f 0%, #003343 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#002c5f] to-[#003343]`
- Contrast (worst point): white 13.45:1 AA · black 1.52:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.002c5f-003343?a=135

## Complementary

Partner hue from the complementary rule at the source colour's lightness. ΔH 179° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

- CSS: `linear-gradient(135deg in oklch shorter hue, #002c5f 0%, #402800 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#002c5f] to-[#402800]`
- Contrast (worst point): white 13.72:1 AA · black 1.47:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.002c5f-402800?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, #002c5f 0%, #5b0018 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#002c5f] to-[#5b0018]`
- Contrast (worst point): white 13.70:1 AA · black 1.45:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.002c5f-5b0018?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 4.33:1 AA-large, black 1.53:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #002c5f 0%, #e63312 100%);
  /* hero — worst-case contrast: white 4.56:1 AA, black 1.41:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #1c2837 0%, #a1675b 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 11.84:1 AA, black 1.34:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #0b376b 0%, #002153 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #153f74 0%, #00295c 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #022f62 0%, #00194b 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.