# Plaid gradient

Gradients derived from Plaid'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/plaid-com
- Brand colors: https://brandsweets.com/colors/brands/plaid-com · Brand page: https://brandsweets.com/b/plaid-com
- Palette: primary #6f80b1, secondary #02294b, accents #043c67
- Source: https://plaid.com (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #6f80b1 0%, #02294b 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#6f80b1] to-[#02294b]`
- Contrast (worst point): white 3.89:1 AA-large · black 1.42:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.6f80b1-02294b?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.04 until the ink passes AA at the worst point (4.55:1).

- CSS: `linear-gradient(135deg in oklab, #6f7687 0%, #16212a 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#6f7687] to-[#16212a]`
- Contrast (worst point): white 4.55:1 AA · black 1.28:1 fail · banding medium · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.6f7687-16212a?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 −0.10 so white ink gets as close as the ±0.1 bound allows to AA on the surface and both states (worst 4.41:1). Ink is below AA (4.41:1 at the worst point) — use it for large text only, or pick a darker/lighter primary for buttons.

- CSS: `linear-gradient(180deg in oklch shorter hue, #5e6e9e 0%, #485785 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#5e6e9e] to-[#485785]`
- Contrast (worst point): white 5.00:1 AA · black 2.98:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.5e6e9e-485785?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #6677a7 0%, #50608f 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #566695 0%, #404f7c 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #a5b8ec 0%, #6f80b1 50%, #3d4c79 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#a5b8ec] via-[#6f80b1] to-[#3d4c79]`
- Contrast (worst point): white 1.97:1 fail · black 2.51:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.a5b8ec-6f80b1-3d4c79?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, #6f80b1 0%, #67879d 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#6f80b1] to-[#67879d]`
- Contrast (worst point): white 3.79:1 AA-large · black 5.38:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.6f80b1-67879d?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, #6f80b1 0%, #8d8163 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#6f80b1] to-[#8d8163]`
- Contrast (worst point): white 3.84:1 AA-large · black 5.25:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.6f80b1-8d8163?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, #6f80b1 0%, #b16d62 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#6f80b1] to-[#b16d62]`
- Contrast (worst point): white 3.87:1 AA-large · black 5.21:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.6f80b1-b16d62?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 3.89:1 AA-large, black 1.42:1 */
  --brand-gradient: linear-gradient(135deg in oklab, #6f80b1 0%, #02294b 100%);
  /* hero — worst-case contrast: white 4.55:1 AA, black 1.28:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #6f7687 0%, #16212a 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.00:1 AA, black 2.98:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #5e6e9e 0%, #485785 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #6677a7 0%, #50608f 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #566695 0%, #404f7c 100%);
  --brand-gradient-button-ink: #ffffff;
  /* button ink: 4.4:1 — below AA */
}
```

## 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.