Colour to colour · generated

Steel Blue to Burgundy gradient

Steel Blue (#4682b4) into Burgundy (#800020) — 133° 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.

Steel Blue → Burgundy
white text · worst 4.11:1 · AA large
white 4.11 AA largeblack 1.94 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 1.94 failsbanding medium
css
linear-gradient(135deg in oklab, #4682b4 0%, #800020 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 1.94 failsbanding medium
css
linear-gradient(135deg in oklch shorter hue, #4682b4 0%, #800020 100%)

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

sRGB55%
OKLab39%
OKLCH79%

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 4.10 AA largeblack 1.94 failsbanding medium
css
linear-gradient(135deg in oklab, #4682b4 0%, #4881b2 8.28%, #4f7dac 16.03%, #5777a2 23.35%, #5f7096 30.32%, #676788 37.03%, #6e5d79 43.56%, #74536a 50%, #78475a 56.44%, #7b3b4c 62.97%, #7d2f3e 69.68%, #7f2232 76.65%, #801429 83.97%, #800622 91.72%, #800020 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 4.65 AAblack 2.46 failsbanding high
css
background-color: #74536a;
background-image: radial-gradient(circle farthest-corner at 5.81% 62.46%, rgba(128, 0, 32, 0.893) 0%, rgba(128, 0, 32, 0) 56.92%), radial-gradient(circle farthest-corner at 68.12% 70.77%, rgba(70, 130, 180, 0.796) 0%, rgba(70, 130, 180, 0) 51.38%);
background-image: radial-gradient(circle farthest-corner at 5.81% 62.46%, oklch(from #800020 l c h / 0.8934) 0%, rgb(from #800020 r g b / 0) 56.92%), radial-gradient(circle farthest-corner at 68.12% 70.77%, oklch(from #4682b4 l c h / 0.7961) 0%, rgb(from #4682b4 r g b / 0) 51.38%);

Report

  • white ink: worst 4.11:1 at 0% (AA-large only); black ink: worst 1.94:1 at 100% (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: ~10px bands at 1440px — add grain 20 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #4682b4 0%, #517ca9 7.14%, #5a759e 14.29%, #616e94 21.43%, #676889 28.57%, #6c617f 35.71%, #705a74 42.86%, #74536a 50%, #774b5f 57.14%, #794355 64.29%, #7b3a4b 71.43%, #7d3141 78.57%, #7e2636 85.71%, #7f182b 92.86%, #800020 100%);
  background-image: linear-gradient(135deg in oklab, #4682b4 0%, #800020 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#4682b4] to-[#800020]
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="#4682b4"/><stop offset="7.14%" stop-color="#517ca9"/><stop offset="14.29%" stop-color="#5a759e"/><stop offset="21.43%" stop-color="#616e94"/><stop offset="28.57%" stop-color="#676889"/><stop offset="35.71%" stop-color="#6c617f"/><stop offset="42.86%" stop-color="#705a74"/><stop offset="50%" stop-color="#74536a"/><stop offset="57.14%" stop-color="#774b5f"/><stop offset="64.29%" stop-color="#794355"/><stop offset="71.43%" stop-color="#7b3a4b"/><stop offset="78.57%" stop-color="#7d3141"/><stop offset="85.71%" stop-color="#7e2636"/><stop offset="92.86%" stop-color="#7f182b"/><stop offset="100%" stop-color="#800020"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "steelblue-to-burgundy": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.275,
            0.51,
            0.706
          ],
          "hex": "#4682b4"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.502,
            0,
            0.125
          ],
          "hex": "#800020"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #4682b4 0%, #800020 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "steelblue-to-burgundy",
        "contrast": {
          "white": {
            "ratio": 4.108,
            "at": 0,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 1.939,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Steel Blue to Burgundy, interpolated in oklab."
  }
}

More from Steel Blue

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 steel blue to burgundy 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