Colour to colour
Charcoal to Cadet Blue gradient
Charcoal (#36454f) into Cadet Blue (#5f9ea0) — 39° apart on the OKLCH hue wheel. Below: the same two stops interpolated in OKLab and in OKLCH, side by side, because the difference is real and most generators never let you see it; then an eased version and a mesh, each with the worst-case contrast for white and black text. The engine's own pick for this pair is oklab — both colours are in the palette and the hue gap is small enough that the straight line stays clean.
OKLab and OKLCH, side by side
OKLab
Open in maker →A straight line through the a/b plane: the two hues meet halfway and desaturate a little at the midpoint. The safe default — it is what CSS and Tailwind default to.
linear-gradient(135deg in oklab, #36454f 0%, #5f9ea0 100%)
OKLCH (shorter hue)
Open in maker →Chroma and hue interpolate separately, so the midpoint keeps its saturation and the hue travels the short way round the wheel — richer, and it can pass through hues neither colour has.
linear-gradient(135deg in oklch shorter hue, #36454f 0%, #5f9ea0 100%)
And the sRGB line most tools draw, for comparison — the number is the chroma that survives at the dullest point.
Eased and mesh
Eased (soft)
Open in maker →A cubic-bezier(.4, 0, .6, 1) mix ratio baked into 15 stops: the transition lingers on each colour and moves faster through the middle, which is what makes a gradient read as designed rather than default.
linear-gradient(135deg in oklab, #36454f 0%, #374650 8.28%, #384a53 16.03%, #3b4f58 23.35%, #3e565e 30.32%, #425e66 37.03%, #46676e 43.56%, #4b7076 50%, #4f7a7f 56.44%, #538387 62.97%, #578b8f 69.68%, #5a9396 76.65%, #5d999b 83.97%, #5e9d9f 91.72%, #5f9ea0 100%)
Mesh
Open in maker →Both colours as stacked radials over a base, laid out by a seeded Poisson-disc sampler — the same seed gives the same mesh forever. Exports as CSS, SVG and PNG.
background-color: #4b7076; background-image: radial-gradient(circle farthest-corner at 92.46% 86.15%, rgba(95, 158, 160, 0.889) 0%, rgba(95, 158, 160, 0) 47.42%), radial-gradient(circle farthest-corner at 41.01% 68.6%, rgba(54, 69, 79, 0.847) 0%, rgba(54, 69, 79, 0) 45.64%); background-image: radial-gradient(circle farthest-corner at 92.46% 86.15%, oklch(from #5f9ea0 l c h / 0.8891) 0%, rgb(from #5f9ea0 r g b / 0) 47.42%), radial-gradient(circle farthest-corner at 41.01% 68.6%, oklch(from #36454f l c h / 0.8466) 0%, rgb(from #36454f r g b / 0) 45.64%);
Report
- white ink: worst 3.05:1 at 100% (AA-large only); black ink: worst 2.12:1 at 0% (fails AA) → use white text.
- Body text fails AA everywhere on this gradient; large text (≥24px / 19px bold) is fine. Add a scrim or lower the chroma for body copy.
- Banding medium: ~16px bands at 1440px — add grain 33 (≈2% soft-light noise) or shorten the ramp.
Export
.gradient {
background-image: linear-gradient(135deg, #36454f 0%, #394b54 7.14%, #3c515a 14.29%, #3f5760 21.43%, #425d65 28.57%, #45636b 35.71%, #486a71 42.86%, #4b7076 50%, #4e767c 57.14%, #517d82 64.29%, #538388 71.43%, #568a8e 78.57%, #599194 85.71%, #5c979a 92.86%, #5f9ea0 100%);
background-image: linear-gradient(135deg in oklab, #36454f 0%, #5f9ea0 100%);
}bg-linear-to-br/oklab from-[#36454f] to-[#5f9ea0]
<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="600" viewBox="0 0 1440 600"><defs><linearGradient id="bs-gradient" gradientUnits="userSpaceOnUse" x1="210" y1="-210" x2="1230" y2="810"><stop offset="0%" stop-color="#36454f"/><stop offset="7.14%" stop-color="#394b54"/><stop offset="14.29%" stop-color="#3c515a"/><stop offset="21.43%" stop-color="#3f5760"/><stop offset="28.57%" stop-color="#425d65"/><stop offset="35.71%" stop-color="#45636b"/><stop offset="42.86%" stop-color="#486a71"/><stop offset="50%" stop-color="#4b7076"/><stop offset="57.14%" stop-color="#4e767c"/><stop offset="64.29%" stop-color="#517d82"/><stop offset="71.43%" stop-color="#538388"/><stop offset="78.57%" stop-color="#568a8e"/><stop offset="85.71%" stop-color="#599194"/><stop offset="92.86%" stop-color="#5c979a"/><stop offset="100%" stop-color="#5f9ea0"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
{
"charcoal-to-cadetblue": {
"$type": "gradient",
"$value": [
{
"color": {
"colorSpace": "srgb",
"components": [
0.212,
0.271,
0.31
],
"hex": "#36454f"
},
"position": 0
},
{
"color": {
"colorSpace": "srgb",
"components": [
0.373,
0.62,
0.627
],
"hex": "#5f9ea0"
},
"position": 1
}
],
"$extensions": {
"com.brandsweets": {
"kind": "linear",
"css": "linear-gradient(135deg in oklab, #36454f 0%, #5f9ea0 100%)",
"interpolation": "oklab",
"angle": 135,
"name": "charcoal-to-cadetblue",
"contrast": {
"white": {
"ratio": 3.05,
"at": 1,
"passesAA": false,
"passesAALarge": true
},
"black": {
"ratio": 2.121,
"at": 0,
"passesAA": false,
"passesAALarge": false
},
"suggestedInk": "#ffffff"
}
}
},
"$description": "Charcoal to Cadet Blue, interpolated in oklab."
}
}More from Charcoal
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.
https://mcp.brandsweets.com/gradients/mcpclaude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp
›make a charcoal to cadet blue hero gradient in oklch that passes AA for white text, with grain if it bands
Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: gradients.md