Colour to colour

Charcoal to Blush Pink gradient

Charcoal (#36454f) into Blush Pink (#e8b4b8) — 136° 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.

Charcoal → Blush Pink
black text · worst 2.12:1 · fails
white 1.80 failsblack 2.12 failsbanding 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 1.80 failsblack 2.12 failsbanding medium
css
linear-gradient(135deg in oklab, #36454f 0%, #e8b4b8 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 1.80 failsblack 2.12 failsbanding medium
css
linear-gradient(135deg in oklch shorter hue, #36454f 0%, #e8b4b8 100%)

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

sRGB30%
OKLab30%
OKLCH60%

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 1.80 failsblack 2.12 failsbanding medium
css
linear-gradient(135deg in oklab, #36454f 0%, #384750 8.28%, #3f4b54 16.03%, #4a515b 23.35%, #575a63 30.32%, #67646c 37.03%, #796f77 43.56%, #8b7b82 50%, #9f878d 56.44%, #b19298 62.97%, #c29da2 69.68%, #d2a6ab 76.65%, #ddaeb2 83.97%, #e5b2b6 91.72%, #e8b4b8 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 3.75 AA largeblack 3.05 AA largebanding high
css
background-color: #8b7b82;
background-image: radial-gradient(circle farthest-corner at 7.03% 76.78%, rgba(232, 180, 184, 0.779) 0%, rgba(232, 180, 184, 0) 56.16%), radial-gradient(circle farthest-corner at 18.25% 26.39%, rgba(54, 69, 79, 0.878) 0%, rgba(54, 69, 79, 0) 58.6%);
background-image: radial-gradient(circle farthest-corner at 7.03% 76.78%, oklch(from #e8b4b8 l c h / 0.7785) 0%, rgb(from #e8b4b8 r g b / 0) 56.16%), radial-gradient(circle farthest-corner at 18.25% 26.39%, oklch(from #36454f l c h / 0.8783) 0%, rgb(from #36454f r g b / 0) 58.6%);

Report

  • white ink: worst 1.80:1 at 100% (fails AA); black ink: worst 2.12:1 at 0% (fails AA) → use black text.
  • Neither ink passes AA at the worst point — treat as decorative or add a scrim (rgba(0,0,0,.35) typically lifts white ink past 4:1).
  • Banding medium: ~8px bands at 1440px — add grain 16 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #36454f 0%, #424c56 7.14%, #4e545d 14.29%, #5a5c64 21.43%, #66636c 28.57%, #726b73 35.71%, #7f737a 42.86%, #8b7b82 50%, #988389 57.14%, #a58b91 64.29%, #b29399 71.43%, #bf9ba0 78.57%, #cda3a8 85.71%, #daacb0 92.86%, #e8b4b8 100%);
  background-image: linear-gradient(135deg in oklab, #36454f 0%, #e8b4b8 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#36454f] to-[#e8b4b8]
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="#36454f"/><stop offset="7.14%" stop-color="#424c56"/><stop offset="14.29%" stop-color="#4e545d"/><stop offset="21.43%" stop-color="#5a5c64"/><stop offset="28.57%" stop-color="#66636c"/><stop offset="35.71%" stop-color="#726b73"/><stop offset="42.86%" stop-color="#7f737a"/><stop offset="50%" stop-color="#8b7b82"/><stop offset="57.14%" stop-color="#988389"/><stop offset="64.29%" stop-color="#a58b91"/><stop offset="71.43%" stop-color="#b29399"/><stop offset="78.57%" stop-color="#bf9ba0"/><stop offset="85.71%" stop-color="#cda3a8"/><stop offset="92.86%" stop-color="#daacb0"/><stop offset="100%" stop-color="#e8b4b8"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "charcoal-to-blush-pink": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.212,
            0.271,
            0.31
          ],
          "hex": "#36454f"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.91,
            0.706,
            0.722
          ],
          "hex": "#e8b4b8"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #36454f 0%, #e8b4b8 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "charcoal-to-blush-pink",
        "contrast": {
          "white": {
            "ratio": 1.802,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 2.121,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Charcoal to Blush Pink, interpolated in oklab."
  }
}

More from Charcoal

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 charcoal to blush pink 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