# Spline gradient

Gradients derived from Spline'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/spline-design
- Brand colors: https://brandsweets.com/colors/brands/spline-design · Brand page: https://brandsweets.com/b/spline-design
- Palette: primary #4482fc, secondary #6a9955, accents #ce9178
- Source: https://spline.design (extracted 2026-09-02)

## Brand gradient

- CSS: `linear-gradient(135deg in oklab, #4482fc 0%, #6a9955 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#4482fc] to-[#6a9955]`
- Contrast (worst point): white 3.32:1 AA-large · black 5.82:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.4482fc-6a9955?a=135

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.07 until the ink passes AA at the worst point (4.52:1).

- CSS: `linear-gradient(135deg in oklab, #5e759e 0%, #6a7b64 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#5e759e] to-[#6a7b64]`
- Contrast (worst point): white 4.52:1 AA · black 4.49:1 AA-large · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.5e759e-6a7b64?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 4.08:1). Ink is below AA (4.08:1 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, #326fe7 0%, #1a55cc 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#326fe7] to-[#1a55cc]`
- Contrast (worst point): white 4.60:1 AA · black 3.21:1 AA-large · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.326fe7-1a55cc?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #3b78f1 0%, #245fd6 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #2a65dd 0%, #104cc1 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #98c1ff 0%, #4482fc 50%, #0d48be 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#98c1ff] via-[#4482fc] to-[#0d48be]`
- Contrast (worst point): white 1.84:1 fail · black 2.69:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.98c1ff-4482fc-0d48be?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, #4482fc 0%, #1295c8 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#4482fc] to-[#1295c8]`
- Contrast (worst point): white 3.40:1 AA-large · black 5.83:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.4482fc-1295c8?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, #4482fc 0%, #af800f 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#4482fc] to-[#af800f]`
- Contrast (worst point): white 3.55:1 AA-large · black 5.49:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.4482fc-af800f?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, #4482fc 0%, #fc153d 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#4482fc] to-[#fc153d]`
- Contrast (worst point): white 3.58:1 AA-large · black 5.30:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.4482fc-fc153d?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 3.32:1 AA-large, black 5.82:1 AA */
  --brand-gradient: linear-gradient(135deg in oklab, #4482fc 0%, #6a9955 100%);
  /* hero — worst-case contrast: white 4.52:1 AA, black 4.49:1 AA-large; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklab, #5e759e 0%, #6a7b64 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 4.60:1 AA, black 3.21:1 AA-large */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #326fe7 0%, #1a55cc 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #3b78f1 0%, #245fd6 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #2a65dd 0%, #104cc1 100%);
  --brand-gradient-button-ink: #ffffff;
  /* button ink: 4.1:1 — 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.