Colour to colour · generated
Royal Blue to Forest Green gradient
Royal Blue (#4169e1) into Forest Green (#228b22) — 124° 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, #4169e1 0%, #228b22 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, #4169e1 0%, #228b22 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, #4169e1 0%, #406adf 8.28%, #3e6dd8 16.03%, #3a71ce 23.35%, #3575c1 30.32%, #307ab2 37.03%, #2b7ea2 43.56%, #278190 50%, #23847e 56.44%, #21876b 62.97%, #208858 69.68%, #208a47 76.65%, #218a36 83.97%, #228b28 91.72%, #228b22 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: #278190; background-image: radial-gradient(circle farthest-corner at 75.94% 13.46%, rgba(65, 105, 225, 0.738) 0%, rgba(65, 105, 225, 0) 52.42%), radial-gradient(circle farthest-corner at 31.03% 45.72%, rgba(34, 139, 34, 0.876) 0%, rgba(34, 139, 34, 0) 45.28%); background-image: radial-gradient(circle farthest-corner at 75.94% 13.46%, oklch(from #4169e1 l c h / 0.7383) 0%, rgb(from #4169e1 r g b / 0) 52.42%), radial-gradient(circle farthest-corner at 31.03% 45.72%, oklch(from #228b22 l c h / 0.8762) 0%, rgb(from #228b22 r g b / 0) 45.28%);
Report
- white ink: worst 4.37:1 at 96% (AA-large only); black ink: worst 4.32:1 at 1% (AA-large only) → 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: ~8px bands at 1440px — add grain 15 (≈2% soft-light noise) or shorten the ramp.
Export
.gradient {
background-image: linear-gradient(135deg, #4169e1 0%, #3d6ed6 7.14%, #3872ca 14.29%, #3476bf 21.43%, #3079b3 28.57%, #2d7ca8 35.71%, #2a7f9c 42.86%, #278190 50%, #248384 57.14%, #228577 64.29%, #21876a 71.43%, #20885c 78.57%, #20894c 85.71%, #218a3a 92.86%, #228b22 100%);
background-image: linear-gradient(135deg in oklab, #4169e1 0%, #228b22 100%);
}bg-linear-to-br/oklab from-[#4169e1] to-[#228b22]
<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="#4169e1"/><stop offset="7.14%" stop-color="#3d6ed6"/><stop offset="14.29%" stop-color="#3872ca"/><stop offset="21.43%" stop-color="#3476bf"/><stop offset="28.57%" stop-color="#3079b3"/><stop offset="35.71%" stop-color="#2d7ca8"/><stop offset="42.86%" stop-color="#2a7f9c"/><stop offset="50%" stop-color="#278190"/><stop offset="57.14%" stop-color="#248384"/><stop offset="64.29%" stop-color="#228577"/><stop offset="71.43%" stop-color="#21876a"/><stop offset="78.57%" stop-color="#20885c"/><stop offset="85.71%" stop-color="#20894c"/><stop offset="92.86%" stop-color="#218a3a"/><stop offset="100%" stop-color="#228b22"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
{
"royalblue-to-forestgreen": {
"$type": "gradient",
"$value": [
{
"color": {
"colorSpace": "srgb",
"components": [
0.255,
0.412,
0.882
],
"hex": "#4169e1"
},
"position": 0
},
{
"color": {
"colorSpace": "srgb",
"components": [
0.133,
0.545,
0.133
],
"hex": "#228b22"
},
"position": 1
}
],
"$extensions": {
"com.brandsweets": {
"kind": "linear",
"css": "linear-gradient(135deg in oklab, #4169e1 0%, #228b22 100%)",
"interpolation": "oklab",
"angle": 135,
"name": "royalblue-to-forestgreen",
"contrast": {
"white": {
"ratio": 4.372,
"at": 0.9583,
"passesAA": false,
"passesAALarge": true
},
"black": {
"ratio": 4.322,
"at": 0.0068,
"passesAA": false,
"passesAALarge": true
},
"suggestedInk": "#ffffff"
}
}
},
"$description": "Royal Blue to Forest Green, interpolated in oklab."
}
}More from Royal Blue
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 royal blue to forest green 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