Colour to colour

Chartreuse to Violet gradient

Chartreuse (#7fff00) into Violet (#ee82ee) — 169° 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 169° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

Chartreuse → Violet
black text · worst 9.00:1 · AA
white 1.30 failsblack 9.00 AAbanding 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 1.30 failsblack 9.06 AAbanding medium
css
linear-gradient(135deg in oklab, #7fff00 0%, #ee82ee 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 1.30 failsblack 9.00 AAbanding medium
css
linear-gradient(135deg in oklch shorter hue, #7fff00 0%, #ee82ee 100%)

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

sRGB17%
OKLab9%
OKLCH52%

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 1.29 failsblack 9.00 AAbanding medium
css
linear-gradient(135deg in oklch shorter hue, #7fff00 0%, #8cfc00 8.28%, #adf300 16.03%, #d0e600 23.35%, #edd500 30.32%, #ffc300 37.03%, #ffb645 43.56%, #ffac70 50%, #ffa189 56.44%, #ff969e 62.97%, #ff8ab4 69.68%, #ff7dce 76.65%, #fd7ee0 83.97%, #f281eb 91.72%, #ee82ee 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 1.47 failsblack 10.10 AAbanding high
css
background-color: #c6caa8;
background-image: radial-gradient(circle farthest-corner at 96.57% 70.34%, rgba(127, 255, 0, 0.898) 0%, rgba(127, 255, 0, 0) 51.76%), radial-gradient(circle farthest-corner at 31.73% 11.85%, rgba(238, 130, 238, 0.756) 0%, rgba(238, 130, 238, 0) 47.02%);
background-image: radial-gradient(circle farthest-corner at 96.57% 70.34%, oklch(from #7fff00 l c h / 0.8981) 0%, rgb(from #7fff00 r g b / 0) 51.76%), radial-gradient(circle farthest-corner at 31.73% 11.85%, oklch(from #ee82ee l c h / 0.7555) 0%, rgb(from #ee82ee r g b / 0) 47.02%);

Report

  • white ink: worst 1.30:1 at 1% (fails AA); black ink: worst 9.00:1 at 89% (AA) → use black text.
  • Banding medium: ~6px bands at 1440px — add grain 11 (≈1% soft-light noise) or shorten the ramp.
  • 55/64 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, #7fff00 0%, #b8f000 7.14%, #dae000 14.29%, #f1d200 21.43%, #ffc400 28.57%, #ffba1f 35.71%, #ffb258 42.86%, #ffac70 50%, #ffa582 57.14%, #ff9d90 64.29%, #ff959f 71.43%, #ff8cb0 78.57%, #ff81c5 85.71%, #ff7edc 92.86%, #ee82ee 100%);
  background-image: linear-gradient(135deg in oklch shorter hue, #7fff00 0%, #ee82ee 100%);
}
tailwind v4
bg-linear-to-br/oklch from-[#7fff00] to-[#ee82ee]
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="#7fff00"/><stop offset="7.14%" stop-color="#b8f000"/><stop offset="14.29%" stop-color="#dae000"/><stop offset="21.43%" stop-color="#f1d200"/><stop offset="28.57%" stop-color="#ffc400"/><stop offset="35.71%" stop-color="#ffba1f"/><stop offset="42.86%" stop-color="#ffb258"/><stop offset="50%" stop-color="#ffac70"/><stop offset="57.14%" stop-color="#ffa582"/><stop offset="64.29%" stop-color="#ff9d90"/><stop offset="71.43%" stop-color="#ff959f"/><stop offset="78.57%" stop-color="#ff8cb0"/><stop offset="85.71%" stop-color="#ff81c5"/><stop offset="92.86%" stop-color="#ff7edc"/><stop offset="100%" stop-color="#ee82ee"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "chartreuse-to-violet": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.498,
            1,
            0
          ],
          "hex": "#7fff00"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.933,
            0.51,
            0.933
          ],
          "hex": "#ee82ee"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklch shorter hue, #7fff00 0%, #ee82ee 100%)",
        "interpolation": "oklch",
        "hue": "shorter",
        "angle": 135,
        "name": "chartreuse-to-violet",
        "contrast": {
          "white": {
            "ratio": 1.296,
            "at": 0.0081,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 8.996,
            "at": 0.8889,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Chartreuse to Violet, interpolated in oklch."
  }
}

More from Chartreuse

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 chartreuse to violet 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