Colour to colour · generated

Copper to Khaki gradient

Copper (#b87333) into Khaki (#f0e68c) — 42° 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.

Copper → Khaki
black text · worst 5.54:1 · AA
white 1.28 failsblack 5.54 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 1.28 failsblack 5.54 AAbanding medium
css
linear-gradient(135deg in oklab, #b87333 0%, #f0e68c 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 1.28 failsblack 5.54 AAbanding medium
css
linear-gradient(135deg in oklch shorter hue, #b87333 0%, #f0e68c 100%)

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

sRGB92%
OKLab93%
OKLCH98%

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 1.28 failsblack 5.54 AAbanding medium
css
linear-gradient(135deg in oklab, #b87333 0%, #b97534 8.28%, #bb7938 16.03%, #bf803e 23.35%, #c48945 30.32%, #ca944d 37.03%, #d0a056 43.56%, #d6ac5f 50%, #dbb869 56.44%, #e1c472 62.97%, #e6cf7a 69.68%, #ead881 76.65%, #eddf87 83.97%, #efe48b 91.72%, #f0e68c 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 1.95 failsblack 9.55 AAbanding low
css
background-color: #d6ac5f;
background-image: radial-gradient(circle farthest-corner at 4.76% 71.28%, rgba(184, 115, 51, 0.832) 0%, rgba(184, 115, 51, 0) 54.26%), radial-gradient(circle farthest-corner at 75.41% 21.31%, rgba(240, 230, 140, 0.729) 0%, rgba(240, 230, 140, 0) 57.29%);
background-image: radial-gradient(circle farthest-corner at 4.76% 71.28%, oklch(from #b87333 l c h / 0.8321) 0%, rgb(from #b87333 r g b / 0) 54.26%), radial-gradient(circle farthest-corner at 75.41% 21.31%, oklch(from #f0e68c l c h / 0.7293) 0%, rgb(from #f0e68c r g b / 0) 57.29%);

Report

  • white ink: worst 1.28:1 at 100% (fails AA); black ink: worst 5.54:1 at 0% (AA) → use black text.
  • Banding medium: ~13px bands at 1440px — add grain 26 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #b87333 0%, #bc7b39 7.14%, #c18340 14.29%, #c58b46 21.43%, #c9934d 28.57%, #cd9b53 35.71%, #d2a459 42.86%, #d6ac5f 50%, #dab466 57.14%, #ddbc6c 64.29%, #e1c572 71.43%, #e5cd79 78.57%, #e9d57f 85.71%, #ecde86 92.86%, #f0e68c 100%);
  background-image: linear-gradient(135deg in oklab, #b87333 0%, #f0e68c 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#b87333] to-[#f0e68c]
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="#b87333"/><stop offset="7.14%" stop-color="#bc7b39"/><stop offset="14.29%" stop-color="#c18340"/><stop offset="21.43%" stop-color="#c58b46"/><stop offset="28.57%" stop-color="#c9934d"/><stop offset="35.71%" stop-color="#cd9b53"/><stop offset="42.86%" stop-color="#d2a459"/><stop offset="50%" stop-color="#d6ac5f"/><stop offset="57.14%" stop-color="#dab466"/><stop offset="64.29%" stop-color="#ddbc6c"/><stop offset="71.43%" stop-color="#e1c572"/><stop offset="78.57%" stop-color="#e5cd79"/><stop offset="85.71%" stop-color="#e9d57f"/><stop offset="92.86%" stop-color="#ecde86"/><stop offset="100%" stop-color="#f0e68c"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "copper-to-khaki": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.722,
            0.451,
            0.2
          ],
          "hex": "#b87333"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.941,
            0.902,
            0.549
          ],
          "hex": "#f0e68c"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #b87333 0%, #f0e68c 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "copper-to-khaki",
        "contrast": {
          "white": {
            "ratio": 1.28,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 5.538,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Copper to Khaki, interpolated in oklab."
  }
}

More from Copper

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 copper to khaki 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