# Zoom gradient

Gradients derived from Zoom'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/zoom-us
- Brand colors: https://brandsweets.com/colors/brands/zoom-us · Brand page: https://brandsweets.com/b/zoom-us
- Palette: primary #0b5cff, secondary #0b5cff, accents #27455c
- Source: https://zoom.us (extracted 2026-09-02)

## Brand gradient

ΔE_OK 0.000 < 0.15 between #0b5cff and #0b5cff — a 2-stop would read as a flat fill, so this is a tonal ramp of #0b5cff.

- CSS: `linear-gradient(135deg in oklch shorter hue, #6da3ff 0%, #0b5cff 50%, #000abf 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#6da3ff] via-[#0b5cff] to-[#000abf]`
- Contrast (worst point): white 2.52:1 fail · black 1.80:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.6da3ff-0b5cff-000abf?a=135&in=oklch&hue=shorter

## Hero background

Chroma ×0.35 so it can carry text; ink white (inkFor at the midpoint). L shifted −0.16 until the ink passes AA at the worst point (4.67:1).

- CSS: `linear-gradient(135deg in oklch shorter hue, #627595 0%, #244074 50%, #070d3d 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#627595] via-[#244074] to-[#070d3d]`
- Contrast (worst point): white 4.67:1 AA · black 1.13:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.627595-244074-070d3d?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. L shifted −0.03 so white ink passes AA on the surface and both states (worst 4.61:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #1060ff 0%, #0043e6 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#1060ff] to-[#0043e6]`
- Contrast (worst point): white 5.07:1 AA · black 2.94:1 fail · banding high · ink #ffffff
- Maker: https://brandsweets.com/gradients/new/v1.1060ff-0043e6?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #1d6aff 0%, #004ef1 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #0155f8 0%, #0037db 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #6da3ff 0%, #0b5cff 50%, #000abf 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#6da3ff] via-[#0b5cff] to-[#000abf]`
- Contrast (worst point): white 2.52:1 fail · black 1.80:1 fail · banding high
- Maker: https://brandsweets.com/gradients/new/v1.6da3ff-0b5cff-000abf?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, #0b5cff 0%, #007aa6 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#0b5cff] to-[#007aa6]`
- Contrast (worst point): white 4.83:1 AA · black 3.98:1 AA-large · banding high
- Maker: https://brandsweets.com/gradients/new/v1.0b5cff-007aa6?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, #0b5cff 0%, #906900 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#0b5cff] to-[#906900]`
- Contrast (worst point): white 4.42:1 AA-large · black 3.99:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.0b5cff-906900?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, #0b5cff 0%, #d2002d 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#0b5cff] to-[#d2002d]`
- Contrast (worst point): white 5.17:1 AA · black 3.76:1 AA-large · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.0b5cff-d2002d?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 2.52:1, black 1.80:1 */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #6da3ff 0%, #0b5cff 50%, #000abf 100%);
  /* hero — worst-case contrast: white 4.67:1 AA, black 1.13:1; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #627595 0%, #244074 50%, #070d3d 100%);
  --brand-gradient-hero-ink: #ffffff;
  /* button — worst-case contrast: white 5.07:1 AA, black 2.94:1 */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #1060ff 0%, #0043e6 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #1d6aff 0%, #004ef1 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #0155f8 0%, #0037db 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.