# Penpot gradient

Gradients derived from Penpot'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/penpot-app
- Brand colors: https://brandsweets.com/colors/brands/penpot-app · Brand page: https://brandsweets.com/b/penpot-app
- Palette: primary #100c3c, secondary #0141ff, accents #1677ff
- Source: https://penpot.app (extracted 2026-09-05)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #100c3c 0%, #0141ff 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#100c3c] to-[#0141ff]`
- Contrast (worst point): white 6.56:1 AA · black 1.14:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.100c3c-0141ff?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 (6.01:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklab, #131424 0%, #47629c 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#131424] to-[#47629c]`
- Contrast (worst point): white 6.01:1 AA · black 1.15:1 fail · banding medium · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.131424-47629c?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 15.36:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #181747 0%, #090231 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#181747] to-[#090231]`
- Contrast (worst point): white 16.77:1 AA · black 1.06:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.181747-090231?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #1e1f50 0%, #0e0939 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #120f3f 0%, #050029 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #393c70 0%, #100c3c 50%, #010009 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#393c70] via-[#100c3c] to-[#010009]`
- Contrast (worst point): white 10.22:1 AA · black 1.00:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.393c70-100c3c-010009?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, #100c3c 0%, #061727 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#100c3c] to-[#061727]`
- Contrast (worst point): white 18.07:1 AA · black 1.14:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.100c3c-061727?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, #100c3c 0%, #191606 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#100c3c] to-[#191606]`
- Contrast (worst point): white 17.58:1 AA · black 1.14:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.100c3c-191606?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, #100c3c 0%, #270d06 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#100c3c] to-[#270d06]`
- Contrast (worst point): white 18.22:1 AA · black 1.14:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.100c3c-270d06?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 6.56:1 AA, black 1.14:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #100c3c 0%, #0141ff 100%);
  /* hero — worst-case contrast: white 6.01:1 AA, black 1.15:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #131424 0%, #47629c 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 16.77:1 AA, black 1.06:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #181747 0%, #090231 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #1e1f50 0%, #0e0939 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #120f3f 0%, #050029 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.