Colour to colour

Slate Gray to Goldenrod gradient

Slate Gray (#708090) into Goldenrod (#daa520) — 164° 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 164° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

Slate Gray → Goldenrod
black text · worst 5.18:1 · AA
white 2.24 failsblack 5.18 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 2.24 failsblack 5.18 AAbanding high
css
linear-gradient(135deg in oklab, #708090 0%, #daa520 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 2.24 failsblack 5.18 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #708090 0%, #daa520 100%)

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

sRGB11%
OKLab7%
OKLCH35%

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 2.23 failsblack 5.18 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #708090 0%, #6f8191 8.28%, #6d8495 16.03%, #688999 23.35%, #61909c 30.32%, #59989c 37.03%, #56a096 43.56%, #5ba789 50%, #6dad78 56.44%, #86af63 62.97%, #a0ae4d 69.68%, #b8ac39 76.65%, #caa92a 83.97%, #d6a622 91.72%, #daa520 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 2.56 failsblack 6.70 AAbanding high
css
background-color: #a5946c;
background-image: radial-gradient(circle farthest-corner at 67.3% 83.99%, rgba(218, 165, 32, 0.74) 0%, rgba(218, 165, 32, 0) 59.29%), radial-gradient(circle farthest-corner at 30.7% 74.2%, rgba(112, 128, 144, 0.777) 0%, rgba(112, 128, 144, 0) 53.88%);
background-image: radial-gradient(circle farthest-corner at 67.3% 83.99%, oklch(from #daa520 l c h / 0.7402) 0%, rgb(from #daa520 r g b / 0) 59.29%), radial-gradient(circle farthest-corner at 30.7% 74.2%, oklch(from #708090 l c h / 0.7773) 0%, rgb(from #708090 r g b / 0) 53.88%);

Report

  • white ink: worst 2.24:1 at 100% (fails AA); black ink: worst 5.18:1 at 0% (AA) → use black text.
  • Banding high: ~13px bands at 1440px — add grain 27 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #708090 0%, #6b8596 7.14%, #668b9a 14.29%, #60919c 21.43%, #5a979c 28.57%, #569d98 35.71%, #56a392 42.86%, #5ba789 50%, #66ab7e 57.14%, #75ae71 64.29%, #87af61 71.43%, #9baf51 78.57%, #b0ad3f 85.71%, #c5aa2d 92.86%, #daa520 100%);
  background-image: linear-gradient(135deg in oklch shorter hue, #708090 0%, #daa520 100%);
}
tailwind v4
bg-linear-to-br/oklch from-[#708090] to-[#daa520]
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="#708090"/><stop offset="7.14%" stop-color="#6b8596"/><stop offset="14.29%" stop-color="#668b9a"/><stop offset="21.43%" stop-color="#60919c"/><stop offset="28.57%" stop-color="#5a979c"/><stop offset="35.71%" stop-color="#569d98"/><stop offset="42.86%" stop-color="#56a392"/><stop offset="50%" stop-color="#5ba789"/><stop offset="57.14%" stop-color="#66ab7e"/><stop offset="64.29%" stop-color="#75ae71"/><stop offset="71.43%" stop-color="#87af61"/><stop offset="78.57%" stop-color="#9baf51"/><stop offset="85.71%" stop-color="#b0ad3f"/><stop offset="92.86%" stop-color="#c5aa2d"/><stop offset="100%" stop-color="#daa520"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "slategray-to-goldenrod": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.439,
            0.502,
            0.565
          ],
          "hex": "#708090"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.855,
            0.647,
            0.125
          ],
          "hex": "#daa520"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklch shorter hue, #708090 0%, #daa520 100%)",
        "interpolation": "oklch",
        "hue": "shorter",
        "angle": 135,
        "name": "slategray-to-goldenrod",
        "contrast": {
          "white": {
            "ratio": 2.238,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 5.179,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Slate Gray to Goldenrod, interpolated in oklch."
  }
}

More from Slate Gray

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 slate gray to goldenrod 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