Colour to colour · generated
Midnight Blue to Cobalt Blue gradient
Midnight Blue (#191970) into Cobalt Blue (#0047ab) — 13° 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, #191970 0%, #0047ab 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, #191970 0%, #0047ab 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, #191970 0%, #191a71 8.28%, #191c73 16.03%, #191f77 23.35%, #18227b 30.32%, #172781 37.03%, #162b87 43.56%, #15308d 50%, #123593 56.44%, #0f3a99 62.97%, #0c3e9f 69.68%, #0742a4 76.65%, #0444a8 83.97%, #0146aa 91.72%, #0047ab 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: #15308d; background-image: radial-gradient(circle farthest-corner at 24.34% 62.76%, rgba(0, 71, 171, 0.738) 0%, rgba(0, 71, 171, 0) 46.64%), radial-gradient(circle farthest-corner at 71.08% 48.31%, rgba(25, 25, 112, 0.86) 0%, rgba(25, 25, 112, 0) 45.77%); background-image: radial-gradient(circle farthest-corner at 24.34% 62.76%, oklch(from #0047ab l c h / 0.7383) 0%, rgb(from #0047ab r g b / 0) 46.64%), radial-gradient(circle farthest-corner at 71.08% 48.31%, oklch(from #191970 l c h / 0.8595) 0%, rgb(from #191970 r g b / 0) 45.77%);
Report
- white ink: worst 8.44:1 at 100% (AA); black ink: worst 1.41:1 at 0% (fails AA) → use white text.
- Banding high: ~24px bands at 1440px — add grain 46 (≈3% soft-light noise) or shorten the ramp.
Export
.gradient {
background-image: linear-gradient(135deg, #191970 0%, #191c74 7.14%, #192078 14.29%, #18237c 21.43%, #182680 28.57%, #172a85 35.71%, #162d89 42.86%, #15308d 50%, #133391 57.14%, #113795 64.29%, #0f3a9a 71.43%, #0c3d9e 78.57%, #0940a2 85.71%, #0544a7 92.86%, #0047ab 100%);
background-image: linear-gradient(135deg in oklab, #191970 0%, #0047ab 100%);
}bg-linear-to-br/oklab from-[#191970] to-[#0047ab]
<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="#191970"/><stop offset="7.14%" stop-color="#191c74"/><stop offset="14.29%" stop-color="#192078"/><stop offset="21.43%" stop-color="#18237c"/><stop offset="28.57%" stop-color="#182680"/><stop offset="35.71%" stop-color="#172a85"/><stop offset="42.86%" stop-color="#162d89"/><stop offset="50%" stop-color="#15308d"/><stop offset="57.14%" stop-color="#133391"/><stop offset="64.29%" stop-color="#113795"/><stop offset="71.43%" stop-color="#0f3a9a"/><stop offset="78.57%" stop-color="#0c3d9e"/><stop offset="85.71%" stop-color="#0940a2"/><stop offset="92.86%" stop-color="#0544a7"/><stop offset="100%" stop-color="#0047ab"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
{
"midnightblue-to-cobalt": {
"$type": "gradient",
"$value": [
{
"color": {
"colorSpace": "srgb",
"components": [
0.098,
0.098,
0.439
],
"hex": "#191970"
},
"position": 0
},
{
"color": {
"colorSpace": "srgb",
"components": [
0,
0.278,
0.671
],
"hex": "#0047ab"
},
"position": 1
}
],
"$extensions": {
"com.brandsweets": {
"kind": "linear",
"css": "linear-gradient(135deg in oklab, #191970 0%, #0047ab 100%)",
"interpolation": "oklab",
"angle": 135,
"name": "midnightblue-to-cobalt",
"contrast": {
"white": {
"ratio": 8.436,
"at": 1,
"passesAA": true,
"passesAALarge": true
},
"black": {
"ratio": 1.414,
"at": 0,
"passesAA": false,
"passesAALarge": false
},
"suggestedInk": "#ffffff"
}
}
},
"$description": "Midnight Blue to Cobalt Blue, interpolated in oklab."
}
}More from Midnight 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 midnight blue to cobalt 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