# Blizzard gradient

Gradients derived from Blizzard'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/blizzard-com
- Brand colors: https://brandsweets.com/colors/brands/blizzard-com · Brand page: https://brandsweets.com/b/blizzard-com
- Palette: primary #38a8ff, secondary #323a48
- Source: https://blizzard.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #38a8ff 0%, #323a48 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#38a8ff] to-[#323a48]`
- Contrast (worst point): white 2.56:1 fail · black 1.83:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.38a8ff-323a48?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.15 until the ink passes AA at the worst point (4.62:1).

- CSS: `linear-gradient(135deg in oklab, #587896 0%, #16181b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#587896] to-[#16181b]`
- Contrast (worst point): white 4.62:1 AA · black 1.18:1 fail · banding medium · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.587896-16181b?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. Black ink passes AA on the surface and both states (worst 6.30:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #48b5ff 0%, #269bf1 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#48b5ff] to-[#269bf1]`
- Contrast (worst point): white 2.25:1 fail · black 7.04:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.48b5ff-269bf1?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #63bfff 0%, #34a5fc 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #3cabff 0%, #1592e7 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #b0e0ff 0%, #38a8ff 50%, #006fc2 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#b0e0ff] via-[#38a8ff] to-[#006fc2]`
- Contrast (worst point): white 1.40:1 fail · black 4.05:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.b0e0ff-38a8ff-006fc2?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, #38a8ff 0%, #00b4d4 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#38a8ff] to-[#00b4d4]`
- Contrast (worst point): white 2.47:1 fail · black 8.18:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.38a8ff-00b4d4?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, #38a8ff 0%, #e18a00 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#38a8ff] to-[#e18a00]`
- Contrast (worst point): white 2.56:1 fail · black 7.49:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.38a8ff-e18a00?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, #38a8ff 0%, #ff638e 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#38a8ff] to-[#ff638e]`
- Contrast (worst point): white 2.55:1 fail · black 7.43:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.38a8ff-ff638e?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 2.56:1, black 1.83:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #38a8ff 0%, #323a48 100%);
  /* hero — worst-case contrast: white 4.62:1 AA, black 1.18:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #587896 0%, #16181b 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 2.25:1, black 7.04:1 AA */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #48b5ff 0%, #269bf1 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #63bfff 0%, #34a5fc 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #3cabff 0%, #1592e7 100%);
  --brand-gradient-button-ink: #000000;
}
```

## 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.