# Twitch gradient

Gradients derived from Twitch'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/twitch-tv
- Brand colors: https://brandsweets.com/colors/brands/twitch-tv · Brand page: https://brandsweets.com/b/twitch-tv
- Palette: primary #9444fc, secondary #5c16c5, accents #eb0400
- Source: https://twitch.tv (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #9444fc 0%, #5c16c5 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#9444fc] to-[#5c16c5]`
- Contrast (worst point): white 4.67:1 AA · black 2.38:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.9444fc-5c16c5?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.02 until the ink passes AA at the worst point (4.65:1).

- CSS: `linear-gradient(135deg in oklab, #7d6ba5 0%, #4d4476 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#7d6ba5] to-[#4d4476]`
- Contrast (worst point): white 4.65:1 AA · black 2.40:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.7d6ba5-4d4476?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. L shifted −0.07 so white ink passes AA on the surface and both states (worst 4.67:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #8b38f1 0%, #750bd5 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#8b38f1] to-[#750bd5]`
- Contrast (worst point): white 5.34:1 AA · black 2.77:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.8b38f1-750bd5?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #9444fc 0%, #7d21e0 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #832be7 0%, #6d00cb 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #c19bff 0%, #9444fc 50%, #6100b9 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#c19bff] via-[#9444fc] to-[#6100b9]`
- Contrast (worst point): white 2.23:1 fail · black 2.21:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.c19bff-9444fc-6100b9?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, #9444fc 0%, #466cfc 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#9444fc] to-[#466cfc]`
- Contrast (worst point): white 4.35:1 AA-large · black 4.47:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.9444fc-466cfc?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, #9444fc 0%, #77870c 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#9444fc] to-[#77870c]`
- Contrast (worst point): white 3.69:1 AA-large · black 4.49:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.9444fc-77870c?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, #9444fc 0%, #b8640b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#9444fc] to-[#b8640b]`
- Contrast (worst point): white 4.29:1 AA-large · black 4.49:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.9444fc-b8640b?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 4.67:1 AA, black 2.38:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #9444fc 0%, #5c16c5 100%);
  /* hero — worst-case contrast: white 4.65:1 AA, black 2.40:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #7d6ba5 0%, #4d4476 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.34:1 AA, black 2.77:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #8b38f1 0%, #750bd5 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #9444fc 0%, #7d21e0 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #832be7 0%, #6d00cb 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.