# Runway gradient

Gradients derived from Runway'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/runwayml-com
- Brand colors: https://brandsweets.com/colors/brands/runwayml-com · Brand page: https://brandsweets.com/b/runwayml-com
- Palette: primary #141414
- Source: https://runwayml.com (extracted 2026-09-02)

## Brand gradient

Achromatic primary with no secondary or accent — the second stop is its tonal partner.

- CSS: `linear-gradient(135deg in oklab, #141414 0%, #404040 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#141414] to-[#404040]`
- Contrast (worst point): white 10.37:1 AA · black 1.14:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.141414-404040?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 (10.37:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklab, #141414 0%, #404040 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#141414] to-[#404040]`
- Contrast (worst point): white 10.37:1 AA · black 1.14:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.141414-404040?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 15.52:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #1d1d1d 0%, #0b0b0b 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#1d1d1d] to-[#0b0b0b]`
- Contrast (worst point): white 16.86:1 AA · black 1.07:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.1d1d1d-0b0b0b?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #242424 0%, #121212 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #161616 0%, #060606 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #404040 0%, #141414 50%, #000000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#404040] via-[#141414] to-[#000000]`
- Contrast (worst point): white 10.37:1 AA · black 1.00:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.404040-141414-000000?a=135&in=oklch&hue=shorter

## Analogous

No chromatic colour in the palette to rotate — analogous falls back to a tonal ramp.

- CSS: `linear-gradient(135deg in oklch shorter hue, #404040 0%, #141414 50%, #000000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#404040] via-[#141414] to-[#000000]`
- Contrast (worst point): white 10.37:1 AA · black 1.00:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.404040-141414-000000?a=135&in=oklch&hue=shorter

## Complementary

No chromatic colour in the palette to rotate — complementary falls back to a tonal ramp.

- CSS: `linear-gradient(135deg in oklch shorter hue, #404040 0%, #141414 50%, #000000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#404040] via-[#141414] to-[#000000]`
- Contrast (worst point): white 10.37:1 AA · black 1.00:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.404040-141414-000000?a=135&in=oklch&hue=shorter

## Triadic

No chromatic colour in the palette to rotate — triadic falls back to a tonal ramp.

- CSS: `linear-gradient(135deg in oklch shorter hue, #404040 0%, #141414 50%, #000000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#404040] via-[#141414] to-[#000000]`
- Contrast (worst point): white 10.37:1 AA · black 1.00:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.404040-141414-000000?a=135&in=oklch&hue=shorter

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 10.37:1 AA, black 1.14:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #141414 0%, #404040 100%);
  /* hero — worst-case contrast: white 10.37:1 AA, black 1.14:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #141414 0%, #404040 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 16.86:1 AA, black 1.07:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #1d1d1d 0%, #0b0b0b 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #242424 0%, #121212 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #161616 0%, #060606 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.