brandsweets

Gradient maker

deg
Export
Aa — the quick brown fox
white text · worst 4.11:1 · AA large only
white 4.11 AA-lgblack 1.31 ✗banding medium · 11.08px
2 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 white ink. The marker is the exact worst point.

worst white 4.11:1 at 97% · AA large only
Nudges the stop nearest 97% in lightness (hue kept). Or a scrim rgb(0 0 0 / .35) under the text takes it from 4.11:1 to 7.86:1.

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(0.4, 0, 0.6, 1)
stops · baked 228 B vs hint 29 B · fit Δ 0.115 → emitting baked stops

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(135deg, #000080 0%, #000481 8.28%, #001083 16.03%, #001c87 23.35%, #00288b 30.32%, #003490 37.03%, #044096 43.56%, #114c9b 50%, #1d58a1 56.44%, #2763a6 62.97%, #316dab 69.68%, #3a75ae 76.65%, #407cb1 83.97%, #4480b3 91.72%, #4682b4 100%);
  background-image: linear-gradient(135deg in oklab, #000080 0%, #000481 8.28%, #001083 16.03%, #001c87 23.35%, #00288b 30.32%, #003490 37.03%, #044096 43.56%, #114c9b 50%, #1d58a1 56.44%, #2763a6 62.97%, #316dab 69.68%, #3a75ae 76.65%, #407cb1 83.97%, #4480b3 91.72%, #4682b4 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/v1.000080-4682b4?a=135&e=soft&n=15

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