# MetaMask gradient

Gradients derived from MetaMask'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/metamask-io
- Brand colors: https://brandsweets.com/colors/brands/metamask-io · Brand page: https://brandsweets.com/b/metamask-io
- Palette: primary #0a0a0a, secondary #3d065f, accents #e5ffc3
- Source: https://metamask.io (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #0a0a0a 0%, #3d065f 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#0a0a0a] to-[#3d065f]`
- Contrast (worst point): white 15.11:1 AA · black 1.06:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.0a0a0a-3d065f?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 (14.46:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklab, #0a0a0a 0%, #31243e 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#0a0a0a] to-[#31243e]`
- Contrast (worst point): white 14.46:1 AA · black 1.06:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.0a0a0a-31243e?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 17.58:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #131313 0%, #040404 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#131313] to-[#040404]`
- Contrast (worst point): white 18.58:1 AA · black 1.02:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.131313-040404?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #191919 0%, #080808 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #0c0c0c 0%, #010101 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #343434 0%, #0a0a0a 50%, #000000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#343434] via-[#0a0a0a] to-[#000000]`
- Contrast (worst point): white 12.45:1 AA · black 1.00:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.343434-0a0a0a-000000?a=135&in=oklch&hue=shorter

## Analogous

Primary #0a0a0a is achromatic — harmony rotates #3d065f instead. Partner hue from the analogous rule at the source colour's lightness.

- CSS: `linear-gradient(135deg in oklab, #3d065f 0%, #20097b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#3d065f] to-[#20097b]`
- Contrast (worst point): white 15.04:1 AA · black 1.38:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.3d065f-20097b?a=135

## Complementary

Primary #0a0a0a is achromatic — harmony rotates #3d065f instead. 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, #3d065f 0%, #223103 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#3d065f] to-[#223103]`
- Contrast (worst point): white 13.86:1 AA · black 1.39:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.3d065f-223103?a=135&in=oklch&hue=shorter

## Triadic

Primary #0a0a0a is achromatic — harmony rotates #3d065f instead. Partner hue from the triadic rule at the source colour's lightness.

- CSS: `linear-gradient(135deg in oklab, #3d065f 0%, #3e2403 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#3d065f] to-[#3e2403]`
- Contrast (worst point): white 14.34:1 AA · black 1.39:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.3d065f-3e2403?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 15.11:1 AA, black 1.06:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #0a0a0a 0%, #3d065f 100%);
  /* hero — worst-case contrast: white 14.46:1 AA, black 1.06:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #0a0a0a 0%, #31243e 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 18.58:1 AA, black 1.02:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #131313 0%, #040404 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #191919 0%, #080808 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #0c0c0c 0%, #010101 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.