# Discover gradient

Gradients derived from Discover'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/discover-com
- Brand colors: https://brandsweets.com/colors/brands/discover-com · Brand page: https://brandsweets.com/b/discover-com
- Palette: primary #23233f, secondary #1e71ac, accents #2477ab
- Source: https://discover.com (extracted 2026-09-05)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #23233f 0%, #1e71ac 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#23233f] to-[#1e71ac]`
- Contrast (worst point): white 5.23:1 AA · black 1.38:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.23233f-1e71ac?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 (5.23:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklab, #25262f 0%, #586f83 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#25262f] to-[#586f83]`
- Contrast (worst point): white 5.23:1 AA · black 1.40:1 fail · banding medium · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.25262f-586f83?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 11.82:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #2d2d4a 0%, #1a1934 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#2d2d4a] to-[#1a1934]`
- Contrast (worst point): white 13.24:1 AA · black 1.23:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.2d2d4a-1a1934?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #343552 0%, #21213c 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #252542 0%, #13122d 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #515272 0%, #23233f 50%, #020011 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#515272] via-[#23233f] to-[#020011]`
- Contrast (worst point): white 7.50:1 AA · black 1.01:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.515272-23233f-020011?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, #23233f 0%, #1d2833 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#23233f] to-[#1d2833]`
- Contrast (worst point): white 14.91:1 AA · black 1.38:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.23233f-1d2833?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, #23233f 0%, #28271d 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#23233f] to-[#28271d]`
- Contrast (worst point): white 14.78:1 AA · black 1.38:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.23233f-28271d?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, #23233f 0%, #32231d 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#23233f] to-[#32231d]`
- Contrast (worst point): white 15.00:1 AA · black 1.38:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.23233f-32231d?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 5.23:1 AA, black 1.38:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #23233f 0%, #1e71ac 100%);
  /* hero — worst-case contrast: white 5.23:1 AA, black 1.40:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #25262f 0%, #586f83 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 13.24:1 AA, black 1.23:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #2d2d4a 0%, #1a1934 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #343552 0%, #21213c 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #252542 0%, #13122d 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.