deg

Aa — the quick brown fox

white text · worst 1.80:1 · fails AA

white 1.80 ✗black 1.58 ✗banding high · 10.91px

3 stops · click the track to add · drag to move · select to edit

grainoffthis gradient as a URL/gradients/new/v1.3a1c71-d76d77-ffaf7b?a=90

Same stops, three spaces

Click a bar to interpolate there. The number is how much chroma survives at the dullest point.

Grey/white endpoints carry the other stop's hue (powerless hue), so green→white stays green.

Contrast along the line

WCAG ratio for white and black ink at every point. Shaded = below 4.5:1 for white ink. The marker is the exact worst point.

worst white 1.80:1 at 100% · fails

Nudges the stop nearest 100% in lightness (hue kept). Or a scrim rgb(0 0 0 / .35) under the text takes it from 1.80:1 to 4.08:1.

Easing

Stops are not evenly spaced. x = stop position, y = mix amount. Baked into 12–16 stops, or one colour-hint when that is within 0.02.

cubic-bezier(0, 0, 1, 1)

baked stops

plain · 3 stops · 37 B

Derive from a palette or brand

Paste hexes (primary first) or a public brand slug. Every type is a pure function of the palette — the same contact sheet an agent gets from brand_gradients.

SpacerandomiseClick trackadd stopDragmove stop⌫remove stop←/→nudge · undo/redo

Export

CSS with the interpolation space, Tailwind v4, SVG with correct geometry, a DTCG token, and the PNG.

Apply this to a brand → sign in

.gradient {
  background-image: linear-gradient(90deg, #3a1c71 0%, #432473 3.57%, #4d2b74 7.14%, #573275 10.71%, #623876 14.29%, #6d3e77 17.86%, #784478 21.43%, #834979 25%, #8e4f79 28.57%, #9a5479 32.14%, #a65979 35.71%, #b25e79 39.29%, #be6379 42.86%, #cb6878 46.43%, #d76d77 50%, #da7278 53.57%, #dd7778 57.14%, #e07b79 60.71%, #e38079 64.29%, #e68579 67.86%, #e88a7a 71.43%, #eb8e7a 75%, #ee937a 78.57%, #f1987a 82.14%, #f49c7b 85.71%, #f7a17b 89.29%, #f9a67b 92.86%, #fcaa7b 96.43%, #ffaf7b 100%);
  background-image: linear-gradient(90deg in oklab, #3a1c71 0%, #d76d77 50%, #ffaf7b 100%);
}

mcpConnect your agent to the gradient engine

live endpoint

Point any MCP client at the shared gradients endpoint and your agent gets the same engine as this page — make_gradient returns CSS with the interpolation space, Tailwind v4, SVG, a PNG URL, a DTCG token and the contrast report in one call; brand_gradients derives the whole contact sheet from a brand or a palette. Read-only, no key. Every gradient is a /gradients/new/… link: open it, refine, paste it back.

endpointhttps://mcp.brandsweets.com/gradients/mcp

claude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp

try this prompt

›derive a hero gradient from #635bff and #00d4ff that passes AA for white text

this gradient as a URL

https://brandsweets.com/gradients/new/v1.3a1c71-d76d77-ffaf7b?a=90

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Gradient maker

Same stops, three spaces

Contrast along the line

Easing

Derive from a palette or brand

Export