brandsweets

Gradient maker

deg
Export
Aa — the quick brown fox
black text · worst 1.88:1 · fails AA
white 1.18 ✗black 1.88 ✗banding low · 3.48px
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 1.88:1 at 33% · fails
Nudges the stop nearest 33% in lightness (hue kept). Or a scrim rgb(255 255 255 / .35) under the text takes it from 1.88:1 to 3.92:1.

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 · 56 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, #8a2be2 0%, #822be1 2.38%, #7a2bdf 4.76%, #712ade 7.14%, #6929dc 9.52%, #6128db 11.9%, #5926d9 14.28%, #5024d8 16.67%, #4822d6 19.05%, #3f1fd5 21.43%, #361bd3 23.81%, #2c17d2 26.19%, #2112d0 28.57%, #140acf 30.95%, #0000cd 33.33%, #0027c4 35.71%, #0038bb 38.09%, #0046ad 40.47%, #0050a3 42.86%, #00589a 45.24%, #006092 47.62%, #006689 50%, #006d80 52.38%, #007375 54.76%, #007869 57.14%, #007d5c 59.53%, #00824e 61.91%, #10873c 64.29%, #228b22 66.67%, #339322 69.05%, #419b22 71.43%, #4ea322 73.81%, #5aab22 76.19%, #66b321 78.57%, #71bb20 80.95%, #7dc41f 83.34%, #88cc1d 85.72%, #94d41b 88.1%, #9fdd19 90.48%, #aae515 92.86%, #b5ee10 95.24%, #c1f609 97.62%, #ccff00 100%);
  background-image: linear-gradient(90deg in oklab, #8a2be2 0%, #0000cd 33.33%, #228b22 66.67%, #ccff00 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/v1.8a2be2-0000cd-228b22-ccff00?a=90

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