Colour to colour · generated

Amber to Terracotta gradient

Amber (#ffbf00) into Terracotta (#e2725b) — 51° 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 → Terracotta
black text · worst 6.79:1 · AA
white 1.65 failsblack 6.79 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 6.79 AAbanding high
css
linear-gradient(135deg in oklab, #ffbf00 0%, #e2725b 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 6.79 AAbanding high
css
linear-gradient(135deg in oklch shorter hue, #ffbf00 0%, #e2725b 100%)

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

sRGB90%
OKLab88%
OKLCH91%

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 6.79 AAbanding high
css
linear-gradient(135deg in oklab, #ffbf00 0%, #ffbe07 8.28%, #febb15 16.03%, #fcb622 23.35%, #fab02d 30.32%, #f7a937 37.03%, #f4a13f 43.56%, #f19946 50%, #ee914c 56.44%, #eb8951 62.97%, #e88254 69.68%, #e67c57 76.65%, #e47659 83.97%, #e2735b 91.72%, #e2725b 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 1.92 failsblack 8.02 AAbanding high
css
background-color: #f19946;
background-image: radial-gradient(circle farthest-corner at 35.04% 9.99%, rgba(255, 191, 0, 0.733) 0%, rgba(255, 191, 0, 0) 49.91%), radial-gradient(circle farthest-corner at 60.06% 85.68%, rgba(226, 114, 91, 0.728) 0%, rgba(226, 114, 91, 0) 54.65%);
background-image: radial-gradient(circle farthest-corner at 35.04% 9.99%, oklch(from #ffbf00 l c h / 0.7329) 0%, rgb(from #ffbf00 r g b / 0) 49.91%), radial-gradient(circle farthest-corner at 60.06% 85.68%, oklch(from #e2725b l c h / 0.7279) 0%, rgb(from #e2725b r g b / 0) 54.65%);

Report

  • white ink: worst 1.65:1 at 1% (fails AA); black ink: worst 6.79:1 at 100% (AA) → use black text.
  • Banding high: ~16px bands at 1440px — add grain 32 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #ffbf00 0%, #fdba19 7.14%, #fbb426 14.29%, #f9af2f 21.43%, #f7aa36 28.57%, #f5a43c 35.71%, #f39f42 42.86%, #f19946 50%, #ef944a 57.14%, #ed8e4e 64.29%, #eb8951 71.43%, #e98354 78.57%, #e77d56 85.71%, #e47859 92.86%, #e2725b 100%);
  background-image: linear-gradient(135deg in oklab, #ffbf00 0%, #e2725b 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#ffbf00] to-[#e2725b]
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="#fdba19"/><stop offset="14.29%" stop-color="#fbb426"/><stop offset="21.43%" stop-color="#f9af2f"/><stop offset="28.57%" stop-color="#f7aa36"/><stop offset="35.71%" stop-color="#f5a43c"/><stop offset="42.86%" stop-color="#f39f42"/><stop offset="50%" stop-color="#f19946"/><stop offset="57.14%" stop-color="#ef944a"/><stop offset="64.29%" stop-color="#ed8e4e"/><stop offset="71.43%" stop-color="#eb8951"/><stop offset="78.57%" stop-color="#e98354"/><stop offset="85.71%" stop-color="#e77d56"/><stop offset="92.86%" stop-color="#e47859"/><stop offset="100%" stop-color="#e2725b"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "amber-to-terracotta": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            1,
            0.749,
            0
          ],
          "hex": "#ffbf00"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.886,
            0.447,
            0.357
          ],
          "hex": "#e2725b"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #ffbf00 0%, #e2725b 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "amber-to-terracotta",
        "contrast": {
          "white": {
            "ratio": 1.653,
            "at": 0.0067,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 6.792,
            "at": 1,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Amber to Terracotta, 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 terracotta 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