Colour to colour

Olive Green to Sage Green gradient

Olive Green (#808000) into Sage Green (#9caf88) — 19° 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.

Olive Green → Sage Green
black text · worst 5.01:1 · AA
white 2.36 failsblack 5.01 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 2.36 failsblack 5.01 AAbanding high
css
linear-gradient(135deg in oklab, #808000 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 2.36 failsblack 5.01 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #808000 0%, #9caf88 100%)

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

sRGB63%
OKLab63%
OKLCH63%

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 2.36 failsblack 5.01 AAbanding high
css
linear-gradient(135deg in oklab, #808000 0%, #808106 8.28%, #828314 16.03%, #838622 23.35%, #85892f 30.32%, #888e3c 37.03%, #8b9348 43.56%, #8e9854 50%, #919d60 56.44%, #94a16b 62.97%, #96a674 69.68%, #99a97c 76.65%, #9aac82 83.97%, #9cae87 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 2.99 failsblack 6.10 AAbanding low
css
background-color: #8e9854;
background-image: radial-gradient(circle farthest-corner at 51.85% 78.84%, rgba(128, 128, 0, 0.869) 0%, rgba(128, 128, 0, 0) 51.5%), radial-gradient(circle farthest-corner at 70.03% 43.27%, rgba(156, 175, 136, 0.884) 0%, rgba(156, 175, 136, 0) 48.7%);
background-image: radial-gradient(circle farthest-corner at 51.85% 78.84%, oklch(from #808000 l c h / 0.8694) 0%, rgb(from #808000 r g b / 0) 51.5%), radial-gradient(circle farthest-corner at 70.03% 43.27%, oklch(from #9caf88 l c h / 0.8836) 0%, rgb(from #9caf88 r g b / 0) 48.7%);

Report

  • white ink: worst 2.36:1 at 100% (fails AA); black ink: worst 5.01:1 at 0% (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, #808000 0%, #828318 7.14%, #848726 14.29%, #868a31 21.43%, #888e3b 28.57%, #8a9144 35.71%, #8c944c 42.86%, #8e9854 50%, #909b5c 57.14%, #929e64 64.29%, #94a26b 71.43%, #96a572 78.57%, #98a87a 85.71%, #9aac81 92.86%, #9caf88 100%);
  background-image: linear-gradient(135deg in oklab, #808000 0%, #9caf88 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#808000] 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="#808000"/><stop offset="7.14%" stop-color="#828318"/><stop offset="14.29%" stop-color="#848726"/><stop offset="21.43%" stop-color="#868a31"/><stop offset="28.57%" stop-color="#888e3b"/><stop offset="35.71%" stop-color="#8a9144"/><stop offset="42.86%" stop-color="#8c944c"/><stop offset="50%" stop-color="#8e9854"/><stop offset="57.14%" stop-color="#909b5c"/><stop offset="64.29%" stop-color="#929e64"/><stop offset="71.43%" stop-color="#94a26b"/><stop offset="78.57%" stop-color="#96a572"/><stop offset="85.71%" stop-color="#98a87a"/><stop offset="92.86%" stop-color="#9aac81"/><stop offset="100%" stop-color="#9caf88"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "olive-to-sage-green": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.502,
            0.502,
            0
          ],
          "hex": "#808000"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.612,
            0.686,
            0.533
          ],
          "hex": "#9caf88"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #808000 0%, #9caf88 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "olive-to-sage-green",
        "contrast": {
          "white": {
            "ratio": 2.359,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 5.006,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Olive Green to Sage Green, interpolated in oklab."
  }
}

More from Olive Green

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 olive green 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