Colour to colour

Periwinkle to Burlywood gradient

Periwinkle (#ccccff) into Burlywood (#deb887) — 149° 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 149° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

Periwinkle → Burlywood
black text · worst 11.30:1 · AA
white 1.53 failsblack 11.30 AAbanding high

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 1.54 failsblack 11.31 AAbanding high
css
linear-gradient(135deg in oklab, #ccccff 0%, #deb887 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 1.53 failsblack 11.30 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #ccccff 0%, #deb887 100%)

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

sRGB27%
OKLab27%
OKLCH95%

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 1.53 failsblack 11.30 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #ccccff 0%, #cecbfe 8.28%, #d2c9fc 16.03%, #d8c5f7 23.35%, #e0c1ef 30.32%, #e7bce4 37.03%, #edb8d7 43.56%, #f2b5c7 50%, #f3b3b7 56.44%, #f2b3a8 62.97%, #eeb49b 69.68%, #e9b591 76.65%, #e3b68b 83.97%, #e0b888 91.72%, #deb887 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 1.68 failsblack 12.20 AAbanding low
css
background-color: #d5c3c5;
background-image: radial-gradient(circle farthest-corner at 24.64% 65.48%, rgba(222, 184, 135, 0.788) 0%, rgba(222, 184, 135, 0) 54.23%), radial-gradient(circle farthest-corner at 62.9% 41.49%, rgba(204, 204, 255, 0.836) 0%, rgba(204, 204, 255, 0) 45.74%);
background-image: radial-gradient(circle farthest-corner at 24.64% 65.48%, oklch(from #deb887 l c h / 0.7882) 0%, rgb(from #deb887 r g b / 0) 54.23%), radial-gradient(circle farthest-corner at 62.9% 41.49%, oklch(from #ccccff l c h / 0.8355) 0%, rgb(from #ccccff r g b / 0) 45.74%);

Report

  • white ink: worst 1.53:1 at 1% (fails AA); black ink: worst 11.30:1 at 98% (AA) → use black text.
  • Banding high: ~12px bands at 1440px — add grain 25 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #ccccff 0%, #d3c8fb 7.14%, #dbc4f5 14.29%, #e1c0ee 21.43%, #e7bce5 28.57%, #ebb9dc 35.71%, #efb7d2 42.86%, #f2b5c7 50%, #f3b3bc 57.14%, #f3b3b1 64.29%, #f2b3a7 71.43%, #efb39d 78.57%, #ebb494 85.71%, #e5b68d 92.86%, #deb887 100%);
  background-image: linear-gradient(135deg in oklch shorter hue, #ccccff 0%, #deb887 100%);
}
tailwind v4
bg-linear-to-br/oklch from-[#ccccff] to-[#deb887]
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="#ccccff"/><stop offset="7.14%" stop-color="#d3c8fb"/><stop offset="14.29%" stop-color="#dbc4f5"/><stop offset="21.43%" stop-color="#e1c0ee"/><stop offset="28.57%" stop-color="#e7bce5"/><stop offset="35.71%" stop-color="#ebb9dc"/><stop offset="42.86%" stop-color="#efb7d2"/><stop offset="50%" stop-color="#f2b5c7"/><stop offset="57.14%" stop-color="#f3b3bc"/><stop offset="64.29%" stop-color="#f3b3b1"/><stop offset="71.43%" stop-color="#f2b3a7"/><stop offset="78.57%" stop-color="#efb39d"/><stop offset="85.71%" stop-color="#ebb494"/><stop offset="92.86%" stop-color="#e5b68d"/><stop offset="100%" stop-color="#deb887"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "periwinkle-to-burlywood": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.8,
            0.8,
            1
          ],
          "hex": "#ccccff"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.871,
            0.722,
            0.529
          ],
          "hex": "#deb887"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklch shorter hue, #ccccff 0%, #deb887 100%)",
        "interpolation": "oklch",
        "hue": "shorter",
        "angle": 135,
        "name": "periwinkle-to-burlywood",
        "contrast": {
          "white": {
            "ratio": 1.535,
            "at": 0.0082,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 11.298,
            "at": 0.9826,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Periwinkle to Burlywood, interpolated in oklch."
  }
}

More from Periwinkle

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 periwinkle to burlywood 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