brandsweets

Gradient maker

deg
Export
Aa — the quick brown fox
black text · worst 2.09:1 · fails AA
white 1.56 ✗black 2.09 ✗banding medium · 8px
4 stops · click the track to add · drag to move · select to edit

Same stops, three spaces

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

* some samples left sRGB and were gamut-mapped (slight hue drift there). 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 black ink. The marker is the exact worst point.

worst black 2.09:1 at 0% · fails
Nudges the stop nearest 0% in lightness (hue kept). Or a scrim rgb(255 255 255 / .35) under the text takes it from 2.09:1 to 5.42:1.

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)
plain · 4 stops · 50 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(60deg, #3d3393 0%, #3d3896 2.64%, #3d3d98 5.29%, #3c429b 7.93%, #3c479e 10.57%, #3b4ca1 13.21%, #3a51a3 15.86%, #3955a6 18.5%, #385aa9 21.14%, #375fac 23.79%, #3563ae 26.43%, #3368b1 29.07%, #316db4 31.71%, #2e71b6 34.36%, #2b76b9 37%, #2b7abb 39%, #2b7ebd 41%, #2b82be 43%, #2b85c0 45%, #2b89c2 47%, #2b8dc4 49%, #2c91c5 51%, #2c95c7 53%, #2c99c9 55%, #2c9cca 57%, #2ca0cc 59%, #2ca4ce 61%, #2ca8cf 63%, #2cacd1 65%, #2bb1ce 67.5%, #2bb6ca 70%, #2bbac6 72.5%, #2bbfc3 75%, #2bc3bf 77.5%, #2bc8bb 80%, #2cccb6 82.5%, #2cd1b2 85%, #2dd5ad 87.5%, #2fdaa9 90%, #30dea4 92.5%, #31e29e 95%, #33e799 97.5%, #35eb93 100%);
  background-image: linear-gradient(60deg in oklab, #3d3393 0%, #2b76b9 37%, #2cacd1 65%, #35eb93 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/v1.3d3393_0-2b76b9_37-2cacd1_65-35eb93_100?a=60

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