Colour to colour · generated

Dark Cyan to Crimson gradient

Dark Cyan (#008b8b) into Crimson (#dc143c) — 175° 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 175° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

Dark Cyan → Crimson
black text · worst 4.21:1 · AA large
white 4.07 AA largeblack 4.21 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 4.13 AA largeblack 4.19 AA largebanding medium
css
linear-gradient(135deg in oklab, #008b8b 0%, #dc143c 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 4.07 AA largeblack 4.21 AA largebanding medium
css
linear-gradient(135deg in oklch shorter hue, #008b8b 0%, #dc143c 100%)

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

sRGB16%
OKLab4%
OKLCH61%

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 4.07 AA largeblack 4.20 AA largebanding medium
css
linear-gradient(135deg in oklch shorter hue, #008b8b 0%, #008c89 8.28%, #008d81 16.03%, #008e74 23.35%, #198f5f 30.32%, #408d41 37.03%, #638700 43.56%, #837d00 50%, #997200 56.44%, #ab6600 62.97%, #be5500 69.68%, #d43700 76.65%, #da2517 83.97%, #dc1934 91.72%, #dc143c 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 4.54 AAblack 3.42 AA largebanding high
css
background-color: #9a6a66;
background-image: radial-gradient(circle farthest-corner at 24.19% 16.98%, rgba(220, 20, 60, 0.807) 0%, rgba(220, 20, 60, 0) 56.96%), radial-gradient(circle farthest-corner at 62.34% 51.46%, rgba(0, 139, 139, 0.811) 0%, rgba(0, 139, 139, 0) 53.8%);
background-image: radial-gradient(circle farthest-corner at 24.19% 16.98%, oklch(from #dc143c l c h / 0.8074) 0%, rgb(from #dc143c r g b / 0) 56.96%), radial-gradient(circle farthest-corner at 62.34% 51.46%, oklch(from #008b8b l c h / 0.8107) 0%, rgb(from #008b8b r g b / 0) 53.8%);

Report

  • white ink: worst 4.07:1 at 8% (AA-large only); black ink: worst 4.21:1 at 100% (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: ~7px bands at 1440px — add grain 12 (≈1% soft-light noise) or shorten the ramp.
  • 11/64 samples left sRGB by more than 5% and were gamut-mapped (oklch shorter); expect slight hue drift there.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #008b8b 0%, #008d7e 7.14%, #008e6e 14.29%, #218e5b 21.43%, #3e8d43 28.57%, #578922 35.71%, #6e8400 42.86%, #837d00 50%, #927600 57.14%, #9f6e00 64.29%, #ac6500 71.43%, #bb5900 78.57%, #cc4400 85.71%, #d92a00 92.86%, #dc143c 100%);
  background-image: linear-gradient(135deg in oklch shorter hue, #008b8b 0%, #dc143c 100%);
}
tailwind v4
bg-linear-to-br/oklch from-[#008b8b] to-[#dc143c]
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="#008b8b"/><stop offset="7.14%" stop-color="#008d7e"/><stop offset="14.29%" stop-color="#008e6e"/><stop offset="21.43%" stop-color="#218e5b"/><stop offset="28.57%" stop-color="#3e8d43"/><stop offset="35.71%" stop-color="#578922"/><stop offset="42.86%" stop-color="#6e8400"/><stop offset="50%" stop-color="#837d00"/><stop offset="57.14%" stop-color="#927600"/><stop offset="64.29%" stop-color="#9f6e00"/><stop offset="71.43%" stop-color="#ac6500"/><stop offset="78.57%" stop-color="#bb5900"/><stop offset="85.71%" stop-color="#cc4400"/><stop offset="92.86%" stop-color="#d92a00"/><stop offset="100%" stop-color="#dc143c"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "darkcyan-to-crimson": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0,
            0.545,
            0.545
          ],
          "hex": "#008b8b"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.863,
            0.078,
            0.235
          ],
          "hex": "#dc143c"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklch shorter hue, #008b8b 0%, #dc143c 100%)",
        "interpolation": "oklch",
        "hue": "shorter",
        "angle": 135,
        "name": "darkcyan-to-crimson",
        "contrast": {
          "white": {
            "ratio": 4.07,
            "at": 0.0848,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 4.208,
            "at": 1,
            "passesAA": false,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Dark Cyan to Crimson, interpolated in oklch."
  }
}

More from Dark Cyan

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 cyan to crimson 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