# Elastic gradient

Gradients derived from Elastic'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/elastic-co
- Brand colors: https://brandsweets.com/colors/brands/elastic-co · Brand page: https://brandsweets.com/b/elastic-co
- Palette: primary #fc8204, secondary #00a9e5, accents #0d6efd
- Source: https://elastic.co (extracted 2026-09-05)

## Brand gradient

ΔH 179° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

- CSS: `linear-gradient(135deg in oklch shorter hue, #fc8204 0%, #00a9e5 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#fc8204] to-[#00a9e5]`
- Contrast (worst point): white 2.38:1 fail · black 7.81:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.fc8204-00a9e5?a=135&in=oklch&hue=shorter

## Hero background

Chroma ×0.35 so it can carry text; ink black (inkFor at the midpoint). Passes AA for that ink at the worst point (7.70:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklch shorter hue, #c89e82 0%, #7da2b6 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#c89e82] to-[#7da2b6]`
- Contrast (worst point): white 2.42:1 fail · black 7.70:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.c89e82-7da2b6?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. Black ink passes AA on the surface and both states (worst 6.41:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #ff8f25 0%, #ee7500 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#ff8f25] to-[#ee7500]`
- Contrast (worst point): white 2.28:1 fail · black 7.18:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.ff8f25-ee7500?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #ff9f50 0%, #f87f00 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #ff8510 0%, #e36c00 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #ffd4b0 0%, #fc8204 50%, #b65000 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#ffd4b0] via-[#fc8204] to-[#b65000]`
- Contrast (worst point): white 1.37:1 fail · black 4.14:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.ffd4b0-fc8204-b65000?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, #fc8204 0%, #ff7973 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#fc8204] to-[#ff7973]`
- Contrast (worst point): white 2.51:1 fail · black 8.22:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.fc8204-ff7973?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, #fc8204 0%, #05b6f9 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#fc8204] to-[#05b6f9]`
- Contrast (worst point): white 2.15:1 fail · black 8.33:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.fc8204-05b6f9?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, #fc8204 0%, #06c3a2 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#fc8204] to-[#06c3a2]`
- Contrast (worst point): white 2.24:1 fail · black 8.33:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.fc8204-06c3a2?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 2.38:1, black 7.81:1 AA */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #fc8204 0%, #00a9e5 100%);
  /* hero — worst-case contrast: white 2.42:1, black 7.70:1 AA; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #c89e82 0%, #7da2b6 100%);
  --brand-gradient-hero-ink: #000000;
  /* button — worst-case contrast: white 2.28:1, black 7.18:1 AA */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #ff8f25 0%, #ee7500 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #ff9f50 0%, #f87f00 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #ff8510 0%, #e36c00 100%);
  --brand-gradient-button-ink: #000000;
}
```

## 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.