brandsweets

Gradient maker

deg
Export
Aa — the quick brown fox
black text · worst 3.23:1 · AA large only
white 1.84 ✗black 3.23 AA-lgbanding medium · 4.9px
3 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 3.23:1 at 0% · AA large only
Nudges the stop nearest 0% in lightness (hue kept). Or a scrim rgb(255 255 255 / .35) under the text takes it from 3.23:1 to 6.73:1.

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 · 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, #833ab4 0%, #8b3dad 3.57%, #9340a5 7.14%, #9c419d 10.71%, #a44395 14.29%, #ad438d 17.86%, #b54385 21.43%, #be427c 25%, #c74073 28.57%, #d03e69 32.14%, #d93b5e 35.71%, #e23653 39.29%, #eb3045 42.86%, #f42935 46.43%, #fd1d1d 50%, #fe3320 53.57%, #fe4223 57.14%, #ff4f26 60.71%, #ff5a29 64.29%, #ff642c 67.86%, #ff6e2f 71.43%, #ff7731 75%, #ff8034 78.57%, #ff8837 82.14%, #ff913a 85.71%, #ff993d 89.29%, #fea13f 92.86%, #fda842 96.43%, #fcb045 100%);
  background-image: linear-gradient(90deg in oklab, #833ab4 0%, #fd1d1d 50%, #fcb045 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/v1.833ab4-fd1d1d-fcb045?a=90

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