# Tide gradient

Gradients derived from Tide'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/tide-com
- Brand colors: https://brandsweets.com/colors/brands/tide-com · Brand page: https://brandsweets.com/b/tide-com
- Palette: primary #1b3392, secondary #13259c, accents #fb4c06
- Source: https://tide.com (extracted 2026-09-05)

## Brand gradient

ΔE_OK 0.035 < 0.15 between #1b3392 and #13259c — a 2-stop would read as a flat fill, so this is a tonal ramp of #1b3392.

- CSS: `linear-gradient(135deg in oklch shorter hue, #486acd 0%, #1b3392 50%, #050056 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#486acd] via-[#1b3392] to-[#050056]`
- Contrast (worst point): white 4.98:1 AA · black 1.14:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.486acd-1b3392-050056?a=135&in=oklch&hue=shorter

## 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 (4.87:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklch shorter hue, #637193 0%, #333f5e 50%, #0e162e 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#637193] via-[#333f5e] to-[#0e162e]`
- Contrast (worst point): white 4.87:1 AA · black 1.17:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.637193-333f5e-0e162e?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 8.07:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #243f9f 0%, #132685 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#243f9f] to-[#132685]`
- Contrast (worst point): white 9.18:1 AA · black 1.64:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.243f9f-132685?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #2b48a9 0%, #19308f 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #1d3695 0%, #0d1c7c 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #486acd 0%, #1b3392 50%, #050056 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#486acd] via-[#1b3392] to-[#050056]`
- Contrast (worst point): white 4.98:1 AA · black 1.14:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.486acd-1b3392-050056?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, #1b3392 0%, #234458 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#1b3392] to-[#234458]`
- Contrast (worst point): white 10.26:1 AA · black 1.93:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.1b3392-234458?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, #1b3392 0%, #4b3e21 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#1b3392] to-[#4b3e21]`
- Contrast (worst point): white 10.40:1 AA · black 1.88:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.1b3392-4b3e21?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, #1b3392 0%, #6a2823 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#1b3392] to-[#6a2823]`
- Contrast (worst point): white 10.60:1 AA · black 1.93:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.1b3392-6a2823?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 4.98:1 AA, black 1.14:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #486acd 0%, #1b3392 50%, #050056 100%);
  /* hero — worst-case contrast: white 4.87:1 AA, black 1.17:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #637193 0%, #333f5e 50%, #0e162e 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 9.18:1 AA, black 1.64:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #243f9f 0%, #132685 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #2b48a9 0%, #19308f 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #1d3695 0%, #0d1c7c 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.