# Sketch gradient

Gradients derived from Sketch'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/sketch-com
- Brand colors: https://brandsweets.com/colors/brands/sketch-com · Brand page: https://brandsweets.com/b/sketch-com
- Palette: primary #2c203b, secondary #ff7843, accents #0000ee
- Source: https://sketch.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #2c203b 0%, #ff7843 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#2c203b] to-[#ff7843]`
- Contrast (worst point): white 2.62:1 fail · black 1.38:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.2c203b-ff7843?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.16 until the ink passes AA at the worst point (4.65:1).

- CSS: `linear-gradient(135deg in oklab, #08050e 0%, #996958 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#08050e] to-[#996958]`
- Contrast (worst point): white 4.65:1 AA · black 1.04:1 fail · banding medium · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.08050e-996958?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 11.97:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #362a46 0%, #221631 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#362a46] to-[#221631]`
- Contrast (worst point): white 13.32:1 AA · black 1.23:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.362a46-221631?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #3e314e 0%, #2a1e38 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #2e223e 0%, #1b0f29 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #5b4f6d 0%, #2c203b 50%, #05000e 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#5b4f6d] via-[#2c203b] to-[#05000e]`
- Contrast (worst point): white 7.54:1 AA · black 1.01:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.5b4f6d-2c203b-05000e?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, #2c203b 0%, #1d2445 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#2c203b] to-[#1d2445]`
- Contrast (worst point): white 15.03:1 AA · black 1.37:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.2c203b-1d2445?a=135

## Complementary

Partner hue from the complementary rule at the source colour's lightness. ΔH 179° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

- CSS: `linear-gradient(135deg in oklch shorter hue, #2c203b 0%, #24291c 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#2c203b] to-[#24291c]`
- Contrast (worst point): white 14.75:1 AA · black 1.37:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.2c203b-24291c?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, #2c203b 0%, #2f241b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#2c203b] to-[#2f241b]`
- Contrast (worst point): white 15.07:1 AA · black 1.37:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.2c203b-2f241b?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 2.62:1, black 1.38:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #2c203b 0%, #ff7843 100%);
  /* hero — worst-case contrast: white 4.65:1 AA, black 1.04:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #08050e 0%, #996958 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 13.32:1 AA, black 1.23:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #362a46 0%, #221631 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #3e314e 0%, #2a1e38 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #2e223e 0%, #1b0f29 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.