Colour to colour

Maroon to Steel Blue gradient

Maroon (#800000) into Steel Blue (#4682b4) — 143° 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 oklch: ΔH 143° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

Maroon → Steel Blue
white text · worst 4.11:1 · AA large
white 4.11 AA largeblack 1.92 failsbanding medium

OKLab and OKLCH, side by side

Aa

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.

white 4.11 AA largeblack 1.92 failsbanding medium
css
linear-gradient(135deg in oklab, #800000 0%, #4682b4 100%)
Aa

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.

white 4.11 AA largeblack 1.92 failsbanding medium
css
linear-gradient(135deg in oklch shorter hue, #800000 0%, #4682b4 100%)

And the sRGB line most tools draw, for comparison — the number is the chroma that survives at the dullest point.

sRGB40%
OKLab30%
OKLCH78%

Eased and mesh

Aa

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.

white 4.11 AA largeblack 1.92 failsbanding medium
css
linear-gradient(135deg in oklch shorter hue, #800000 0%, #810109 8.28%, #83071d 16.03%, #851132 23.35%, #861d48 30.32%, #852960 37.03%, #813677 43.56%, #7b448c 50%, #72519d 56.44%, #685ea9 62.97%, #5d6ab0 69.68%, #5374b4 76.65%, #4c7cb4 83.97%, #4780b4 91.72%, #4682b4 100%)
Aa

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.

white 6.50 AAblack 2.30 failsbanding high
css
background-color: #745362;
background-image: radial-gradient(circle farthest-corner at 62.8% 92.63%, rgba(128, 0, 0, 0.772) 0%, rgba(128, 0, 0, 0) 50.68%), radial-gradient(circle farthest-corner at 85.1% 59.3%, rgba(70, 130, 180, 0.798) 0%, rgba(70, 130, 180, 0) 50.35%);
background-image: radial-gradient(circle farthest-corner at 62.8% 92.63%, oklch(from #800000 l c h / 0.7721) 0%, rgb(from #800000 r g b / 0) 50.68%), radial-gradient(circle farthest-corner at 85.1% 59.3%, oklch(from #4682b4 l c h / 0.7983) 0%, rgb(from #4682b4 r g b / 0) 50.35%);

Report

  • white ink: worst 4.11:1 at 100% (AA-large only); black ink: worst 1.92:1 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: ~8px bands at 1440px — add grain 16 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #800000 0%, #830923 7.14%, #851539 14.29%, #861f4d 21.43%, #85285f 28.57%, #83326f 35.71%, #7f3b7f 42.86%, #7b448c 50%, #754d98 57.14%, #6f56a2 64.29%, #675faa 71.43%, #5f68af 78.57%, #5671b3 85.71%, #4e7ab4 92.86%, #4682b4 100%);
  background-image: linear-gradient(135deg in oklch shorter hue, #800000 0%, #4682b4 100%);
}
tailwind v4
bg-linear-to-br/oklch from-[#800000] to-[#4682b4]
svg
<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="#800000"/><stop offset="7.14%" stop-color="#830923"/><stop offset="14.29%" stop-color="#851539"/><stop offset="21.43%" stop-color="#861f4d"/><stop offset="28.57%" stop-color="#85285f"/><stop offset="35.71%" stop-color="#83326f"/><stop offset="42.86%" stop-color="#7f3b7f"/><stop offset="50%" stop-color="#7b448c"/><stop offset="57.14%" stop-color="#754d98"/><stop offset="64.29%" stop-color="#6f56a2"/><stop offset="71.43%" stop-color="#675faa"/><stop offset="78.57%" stop-color="#5f68af"/><stop offset="85.71%" stop-color="#5671b3"/><stop offset="92.86%" stop-color="#4e7ab4"/><stop offset="100%" stop-color="#4682b4"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "maroon-to-steelblue": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.502,
            0,
            0
          ],
          "hex": "#800000"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.275,
            0.51,
            0.706
          ],
          "hex": "#4682b4"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklch shorter hue, #800000 0%, #4682b4 100%)",
        "interpolation": "oklch",
        "hue": "shorter",
        "angle": 135,
        "name": "maroon-to-steelblue",
        "contrast": {
          "white": {
            "ratio": 4.108,
            "at": 1,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 1.918,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Maroon to Steel Blue, interpolated in oklch."
  }
}

More from Maroon

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

make a maroon to steel 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