# Spotify gradient

Gradients derived from Spotify'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/spotify
- Brand colors: https://brandsweets.com/colors/brands/spotify · Brand page: https://brandsweets.com/b/spotify
- Palette: primary #1db954, secondary #9e9eff, accents #0000ee
- Source: https://spotify.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #1db954 0%, #9e9eff 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#1db954] to-[#9e9eff]`
- Contrast (worst point): white 2.38:1 fail · black 8.12:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.1db954-9e9eff?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink black (inkFor at the midpoint). Passes AA for that ink at the worst point (7.77:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklab, #7fa785 0%, #a5a7c9 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#7fa785] to-[#a5a7c9]`
- Contrast (worst point): white 2.34:1 fail · black 7.77:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.7fa785-a5a7c9?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 6.24:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #34c660 0%, #00ac48 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#34c660] to-[#00ac48]`
- Contrast (worst point): white 2.24:1 fail · black 7.00:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.34c660-00ac48?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #41d06a 0%, #15b651 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #24bc57 0%, #00a23e 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #6cf58c 0%, #1db954 50%, #007f20 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#6cf58c] via-[#1db954] to-[#007f20]`
- Contrast (worst point): white 1.39:1 fail · black 4.06:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.6cf58c-1db954-007f20?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, #1db954 0%, #91a719 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#1db954] to-[#91a719]`
- Contrast (worst point): white 2.58:1 fail · black 7.73:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.1db954-91a719?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, #1db954 0%, #f620f4 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#1db954] to-[#f620f4]`
- Contrast (worst point): white 2.49:1 fail · black 6.28:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.1db954-f620f4?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, #1db954 0%, #7494fb 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#1db954] to-[#7494fb]`
- Contrast (worst point): white 2.58:1 fail · black 7.36:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.1db954-7494fb?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 2.38:1, black 8.12:1 AA */
  --brand-gradient: linear-gradient(135deg in oklab, #1db954 0%, #9e9eff 100%);
  /* hero — worst-case contrast: white 2.34:1, black 7.77:1 AA; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #7fa785 0%, #a5a7c9 100%);
  --brand-gradient-hero-ink: #000000;
  /* button — worst-case contrast: white 2.24:1, black 7.00:1 AA */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #34c660 0%, #00ac48 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #41d06a 0%, #15b651 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #24bc57 0%, #00a23e 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.