Colour to colour · generated

Dark Olive Green to Sage Green gradient

Dark Olive Green (#556b2f) into Sage Green (#9caf88) — 3° 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.

Dark Olive Green → Sage Green
black text · worst 3.53:1 · AA large
white 2.36 failsblack 3.53 AA largebanding 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 2.36 failsblack 3.53 AA largebanding medium
css
linear-gradient(135deg in oklab, #556b2f 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 3.53 AA largebanding medium
css
linear-gradient(135deg in oklch shorter hue, #556b2f 0%, #9caf88 100%)

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

sRGB79%
OKLab79%
OKLCH79%

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 3.53 AA largebanding medium
css
linear-gradient(135deg in oklab, #556b2f 0%, #566c30 8.28%, #596f34 16.03%, #5d733a 23.35%, #627841 30.32%, #697e49 37.03%, #708552 43.56%, #788c5c 50%, #7f9465 56.44%, #879b6e 62.97%, #8da176 69.68%, #93a77d 76.65%, #98ab83 83.97%, #9bae87 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 3.27 AA largeblack 5.09 AAbanding low
css
background-color: #788c5c;
background-image: radial-gradient(circle farthest-corner at 9.38% 60.16%, rgba(85, 107, 47, 0.869) 0%, rgba(85, 107, 47, 0) 54.43%), radial-gradient(circle farthest-corner at 44.07% 47.14%, rgba(156, 175, 136, 0.78) 0%, rgba(156, 175, 136, 0) 49.37%);
background-image: radial-gradient(circle farthest-corner at 9.38% 60.16%, oklch(from #556b2f l c h / 0.8693) 0%, rgb(from #556b2f r g b / 0) 54.43%), radial-gradient(circle farthest-corner at 44.07% 47.14%, oklch(from #9caf88 l c h / 0.7795) 0%, rgb(from #9caf88 r g b / 0) 49.37%);

Report

  • white ink: worst 2.36:1 at 100% (fails AA); black ink: worst 3.53:1 at 0% (AA-large only) → use black text.
  • Body text fails AA everywhere on this gradient; large text (≥24px / 19px bold) is fine. Add a scrim or lower the chroma for body copy.
  • Banding medium: ~16px bands at 1440px — add grain 33 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #556b2f 0%, #5a7036 7.14%, #5f743c 14.29%, #647942 21.43%, #687e49 28.57%, #6d834f 35.71%, #728855 42.86%, #788c5c 50%, #7d9162 57.14%, #829668 64.29%, #879b6e 71.43%, #8ca075 78.57%, #91a57b 85.71%, #97aa82 92.86%, #9caf88 100%);
  background-image: linear-gradient(135deg in oklab, #556b2f 0%, #9caf88 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#556b2f] 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="#556b2f"/><stop offset="7.14%" stop-color="#5a7036"/><stop offset="14.29%" stop-color="#5f743c"/><stop offset="21.43%" stop-color="#647942"/><stop offset="28.57%" stop-color="#687e49"/><stop offset="35.71%" stop-color="#6d834f"/><stop offset="42.86%" stop-color="#728855"/><stop offset="50%" stop-color="#788c5c"/><stop offset="57.14%" stop-color="#7d9162"/><stop offset="64.29%" stop-color="#829668"/><stop offset="71.43%" stop-color="#879b6e"/><stop offset="78.57%" stop-color="#8ca075"/><stop offset="85.71%" stop-color="#91a57b"/><stop offset="92.86%" stop-color="#97aa82"/><stop offset="100%" stop-color="#9caf88"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "darkolivegreen-to-sage-green": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.333,
            0.42,
            0.184
          ],
          "hex": "#556b2f"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.612,
            0.686,
            0.533
          ],
          "hex": "#9caf88"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #556b2f 0%, #9caf88 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "darkolivegreen-to-sage-green",
        "contrast": {
          "white": {
            "ratio": 2.359,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 3.53,
            "at": 0,
            "passesAA": false,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Dark Olive Green to Sage Green, interpolated in oklab."
  }
}

More from Dark 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 dark 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