# Stripe gradient

Gradients derived from Stripe'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/stripe
- Brand colors: https://brandsweets.com/colors/brands/stripe · Brand page: https://brandsweets.com/b/stripe
- Palette: primary #635bff, secondary #50617a, accents #533afd
- Source: https://stripe.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #635bff 0%, #50617a 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#635bff] to-[#50617a]`
- Contrast (worst point): white 4.70:1 AA · black 3.33:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.635bff-50617a?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.01 until the ink passes AA at the worst point (4.56:1).

- CSS: `linear-gradient(135deg in oklab, #6c72a7 0%, #575d66 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#6c72a7] to-[#575d66]`
- Contrast (worst point): white 4.56:1 AA · black 3.16:1 AA-large · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.6c72a7-575d66?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 −0.06 so white ink passes AA on the surface and both states (worst 4.55:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #5e54f8 0%, #4b37dc 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#5e54f8] to-[#4b37dc]`
- Contrast (worst point): white 5.12:1 AA · black 2.88:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.5e54f8-4b37dc?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #665eff 0%, #5242e6 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #574aed 0%, #452bd1 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #9ca5ff 0%, #635bff 50%, #3b0fc0 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#9ca5ff] via-[#635bff] to-[#3b0fc0]`
- Contrast (worst point): white 2.27:1 fail · black 2.02:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.9ca5ff-635bff-3b0fc0?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, #635bff 0%, #007ed1 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#635bff] to-[#007ed1]`
- Contrast (worst point): white 4.27:1 AA-large · black 4.46:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.635bff-007ed1?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, #635bff 0%, #8d7a00 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#635bff] to-[#8d7a00]`
- Contrast (worst point): white 4.27:1 AA-large · black 4.34:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.635bff-8d7a00?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, #635bff 0%, #d04200 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#635bff] to-[#d04200]`
- Contrast (worst point): white 4.53:1 AA · black 4.46:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.635bff-d04200?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 4.70:1 AA, black 3.33:1 AA-large */
  --brand-gradient: linear-gradient(135deg in oklab, #635bff 0%, #50617a 100%);
  /* hero — worst-case contrast: white 4.56:1 AA, black 3.16:1 AA-large; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #6c72a7 0%, #575d66 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.12:1 AA, black 2.88:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #5e54f8 0%, #4b37dc 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #665eff 0%, #5242e6 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #574aed 0%, #452bd1 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.