Colour to colour

Amber to Sage Green gradient

Amber (#ffbf00) into Sage Green (#9caf88) — 45° 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.

Amber → Sage Green
black text · worst 8.90:1 · AA
white 1.65 failsblack 8.90 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 1.65 failsblack 8.90 AAbanding high
css
linear-gradient(135deg in oklab, #ffbf00 0%, #9caf88 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 1.65 failsblack 8.89 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #ffbf00 0%, #9caf88 100%)

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

sRGB51%
OKLab51%
OKLCH51%

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 1.65 failsblack 8.90 AAbanding high
css
linear-gradient(135deg in oklab, #ffbf00 0%, #febf0c 8.28%, #fabe1f 16.03%, #f4be30 23.35%, #ecbd3f 30.32%, #e3bb4c 37.03%, #d9ba58 43.56%, #cfb863 50%, #c4b66c 56.44%, #bab574 62.97%, #b0b37b 69.68%, #a8b180 76.65%, #a2b085 83.97%, #9eaf87 91.72%, #9caf88 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 1.74 failsblack 9.77 AAbanding high
css
background-color: #cfb863;
background-image: radial-gradient(circle farthest-corner at 18.25% 1.7%, rgba(255, 191, 0, 0.866) 0%, rgba(255, 191, 0, 0) 52.58%), radial-gradient(circle farthest-corner at 64.8% 42.18%, rgba(156, 175, 136, 0.774) 0%, rgba(156, 175, 136, 0) 51.41%);
background-image: radial-gradient(circle farthest-corner at 18.25% 1.7%, oklch(from #ffbf00 l c h / 0.8655) 0%, rgb(from #ffbf00 r g b / 0) 52.58%), radial-gradient(circle farthest-corner at 64.8% 42.18%, oklch(from #9caf88 l c h / 0.7742) 0%, rgb(from #9caf88 r g b / 0) 51.41%);

Report

  • white ink: worst 1.65:1 at 0% (fails AA); black ink: worst 8.90:1 at 100% (AA) → use black text.
  • Banding high: ~11px bands at 1440px — add grain 22 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #ffbf00 0%, #f8be24 7.14%, #f1bd35 14.29%, #eabc42 21.43%, #e3bb4c 28.57%, #ddba54 35.71%, #d6b95c 42.86%, #cfb863 50%, #c8b769 57.14%, #c0b66f 64.29%, #b9b575 71.43%, #b2b37a 78.57%, #abb27f 85.71%, #a3b084 92.86%, #9caf88 100%);
  background-image: linear-gradient(135deg in oklab, #ffbf00 0%, #9caf88 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#ffbf00] to-[#9caf88]
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="#ffbf00"/><stop offset="7.14%" stop-color="#f8be24"/><stop offset="14.29%" stop-color="#f1bd35"/><stop offset="21.43%" stop-color="#eabc42"/><stop offset="28.57%" stop-color="#e3bb4c"/><stop offset="35.71%" stop-color="#ddba54"/><stop offset="42.86%" stop-color="#d6b95c"/><stop offset="50%" stop-color="#cfb863"/><stop offset="57.14%" stop-color="#c8b769"/><stop offset="64.29%" stop-color="#c0b66f"/><stop offset="71.43%" stop-color="#b9b575"/><stop offset="78.57%" stop-color="#b2b37a"/><stop offset="85.71%" stop-color="#abb27f"/><stop offset="92.86%" stop-color="#a3b084"/><stop offset="100%" stop-color="#9caf88"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "amber-to-sage-green": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            1,
            0.749,
            0
          ],
          "hex": "#ffbf00"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.612,
            0.686,
            0.533
          ],
          "hex": "#9caf88"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #ffbf00 0%, #9caf88 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "amber-to-sage-green",
        "contrast": {
          "white": {
            "ratio": 1.653,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 8.901,
            "at": 1,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Amber to Sage Green, interpolated in oklab."
  }
}

More from Amber

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 amber to sage green 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