Colour to colour

Hot Pink to Medium Aquamarine gradient

Hot Pink (#ff69b4) into Medium Aquamarine (#66cdaa) — 177° 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 177° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

Hot Pink → Medium Aquamarine
black text · worst 7.79:1 · AA
white 1.93 failsblack 7.79 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 1.93 failsblack 7.93 AAbanding high
css
linear-gradient(135deg in oklab, #ff69b4 0%, #66cdaa 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 1.93 failsblack 7.79 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #ff69b4 0%, #66cdaa 100%)

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

sRGB8%
OKLab3%
OKLCH72%

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 1.93 failsblack 7.79 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #ff69b4 0%, #ff69ae 8.28%, #ff6a9f 16.03%, #ff6e87 23.35%, #ff766a 30.32%, #ff8248 37.03%, #f59223 43.56%, #e0a20e 50%, #c7b12d 56.44%, #acbd50 62.97%, #92c56f 69.68%, #7dca88 76.65%, #6fcc9b 83.97%, #68cda6 91.72%, #66cdaa 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 2.14 failsblack 8.12 AAbanding high
css
background-color: #c7a4af;
background-image: radial-gradient(circle farthest-corner at 61.41% 76.95%, rgba(255, 105, 180, 0.795) 0%, rgba(255, 105, 180, 0) 46.25%), radial-gradient(circle farthest-corner at 47.51% 44.68%, rgba(102, 205, 170, 0.74) 0%, rgba(102, 205, 170, 0) 48.34%);
background-image: radial-gradient(circle farthest-corner at 61.41% 76.95%, oklch(from #ff69b4 l c h / 0.7945) 0%, rgb(from #ff69b4 r g b / 0) 46.25%), radial-gradient(circle farthest-corner at 47.51% 44.68%, oklch(from #66cdaa l c h / 0.7403) 0%, rgb(from #66cdaa r g b / 0) 48.34%);

Report

  • white ink: worst 1.93:1 at 100% (fails AA); black ink: worst 7.79:1 at 8% (AA) → use black text.
  • Banding high: ~9px bands at 1440px — add grain 19 (≈2% soft-light noise) or shorten the ramp.
  • 13/64 samples left sRGB by more than 5% and were gamut-mapped (oklch shorter); expect slight hue drift there.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #ff69b4 0%, #ff6b99 7.14%, #ff707e 14.29%, #ff7764 21.43%, #ff814a 28.57%, #fa8c30 35.71%, #ef9718 42.86%, #e0a20e 50%, #d0ac21 57.14%, #beb63a 64.29%, #aabd52 71.43%, #96c46a 78.57%, #83c881 85.71%, #72cb96 92.86%, #66cdaa 100%);
  background-image: linear-gradient(135deg in oklch shorter hue, #ff69b4 0%, #66cdaa 100%);
}
tailwind v4
bg-linear-to-br/oklch from-[#ff69b4] to-[#66cdaa]
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="#ff69b4"/><stop offset="7.14%" stop-color="#ff6b99"/><stop offset="14.29%" stop-color="#ff707e"/><stop offset="21.43%" stop-color="#ff7764"/><stop offset="28.57%" stop-color="#ff814a"/><stop offset="35.71%" stop-color="#fa8c30"/><stop offset="42.86%" stop-color="#ef9718"/><stop offset="50%" stop-color="#e0a20e"/><stop offset="57.14%" stop-color="#d0ac21"/><stop offset="64.29%" stop-color="#beb63a"/><stop offset="71.43%" stop-color="#aabd52"/><stop offset="78.57%" stop-color="#96c46a"/><stop offset="85.71%" stop-color="#83c881"/><stop offset="92.86%" stop-color="#72cb96"/><stop offset="100%" stop-color="#66cdaa"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "hotpink-to-mediumaquamarine": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            1,
            0.412,
            0.706
          ],
          "hex": "#ff69b4"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.4,
            0.804,
            0.667
          ],
          "hex": "#66cdaa"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklch shorter hue, #ff69b4 0%, #66cdaa 100%)",
        "interpolation": "oklch",
        "hue": "shorter",
        "angle": 135,
        "name": "hotpink-to-mediumaquamarine",
        "contrast": {
          "white": {
            "ratio": 1.93,
            "at": 0.9962,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 7.789,
            "at": 0.0805,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Hot Pink to Medium Aquamarine, interpolated in oklch."
  }
}

More from Hot Pink

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 hot pink to medium aquamarine 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