# Oreo gradient

Gradients derived from Oreo'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/oreo-com
- Brand colors: https://brandsweets.com/colors/brands/oreo-com · Brand page: https://brandsweets.com/b/oreo-com
- Palette: primary #0047d9, secondary #0040c3, accents #ffb5e0
- Source: https://oreo.com (extracted 2026-09-05)

## Brand gradient

ΔE_OK 0.039 < 0.15 between #0047d9 and #0040c3 — a 2-stop would read as a flat fill, so this is a tonal ramp of #0047d9.

- CSS: `linear-gradient(135deg in oklch shorter hue, #4687ff 0%, #0047d9 50%, #000098 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#4687ff] via-[#0047d9] to-[#000098]`
- Contrast (worst point): white 3.40:1 AA-large · black 1.45:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.4687ff-0047d9-000098?a=135&in=oklch&hue=shorter

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.08 until the ink passes AA at the worst point (4.59:1).

- CSS: `linear-gradient(135deg in oklch shorter hue, #5f769e 0%, #2b4371 50%, #0c163d 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#5f769e] via-[#2b4371] to-[#0c163d]`
- Contrast (worst point): white 4.59:1 AA · black 1.20:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.5f769e-2b4371-0c163d?a=135&in=oklch&hue=shorter

## 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 5.30:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #1055e7 0%, #0038cb 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#1055e7] to-[#0038cb]`
- Contrast (worst point): white 6.04:1 AA · black 2.43:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.1055e7-0038cb?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #1a5ff2 0%, #0043d5 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #034bdd 0%, #002dc1 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #4687ff 0%, #0047d9 50%, #000098 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#4687ff] via-[#0047d9] to-[#000098]`
- Contrast (worst point): white 3.40:1 AA-large · black 1.45:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.4687ff-0047d9-000098?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, #0047d9 0%, #006489 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#0047d9] to-[#006489]`
- Contrast (worst point): white 6.56:1 AA · black 2.89:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.0047d9-006489?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, #0047d9 0%, #765500 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#0047d9] to-[#765500]`
- Contrast (worst point): white 6.84:1 AA · black 2.78:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.0047d9-765500?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, #0047d9 0%, #ad0023 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#0047d9] to-[#ad0023]`
- Contrast (worst point): white 7.08:1 AA · black 2.79:1 fail · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.0047d9-ad0023?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 3.40:1 AA-large, black 1.45:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #4687ff 0%, #0047d9 50%, #000098 100%);
  /* hero — worst-case contrast: white 4.59:1 AA, black 1.20:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #5f769e 0%, #2b4371 50%, #0c163d 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 6.04:1 AA, black 2.43:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #1055e7 0%, #0038cb 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #1a5ff2 0%, #0043d5 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #034bdd 0%, #002dc1 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.