Named gradient · WebGradients

Slick Carbon

Slick Carbon is a neutral gradient from WebGradients (MIT) — #323232 → #3f3f3f → #1c1c1c at 180°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#323232 #3f3f3f #1c1c1c

Open in the maker Original sRGB in the maker

Aa — the quick brown fox

white text · worst 10.53:1 · AA

white 10.53 AAblack 1.23 failsbanding high

Same stops, three spaces

The source renders this in sRGB. The number is how much chroma survives at the dullest point along the line — the difference between the first bar and the others is the grey that OKLab removes.

sRGB100%

OKLab100%

OKLCH100%

Report

white ink: worst 10.53:1 at 40% (AA); black ink: worst 1.23:1 at 100% (fails AA) → use white text.
Banding high: ~44px bands at 1440px — add grain 50 (≈3% soft-light noise) or shorten the ramp.

Export

css

.gradient {
  background-image: linear-gradient(180deg, #323232 0%, #333333 2.86%, #343434 5.71%, #353535 8.57%, #363636 11.43%, #373737 14.29%, #383838 17.14%, #383838 20%, #393939 22.86%, #3a3a3a 25.71%, #3b3b3b 28.57%, #3c3c3c 31.43%, #3d3d3d 34.29%, #3e3e3e 37.14%, #3f3f3f 40%, #3c3c3c 44.29%, #3a3a3a 48.57%, #373737 52.86%, #353535 57.14%, #323232 61.43%, #2f2f2f 65.71%, #2d2d2d 70%, #2a2a2a 74.29%, #282828 78.57%, #262626 82.86%, #232323 87.14%, #212121 91.43%, #1e1e1e 95.71%, #1c1c1c 100%);
  background-image: linear-gradient(180deg in oklab, #323232 0%, #3f3f3f 40%, #1c1c1c 100%);
}

tailwind v4

bg-linear-to-b/oklab from-[#323232] via-[#3f3f3f] via-40% to-[#1c1c1c]

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="720" y1="0" x2="720" y2="600"><stop offset="0%" stop-color="#323232"/><stop offset="2.86%" stop-color="#333333"/><stop offset="5.71%" stop-color="#343434"/><stop offset="8.57%" stop-color="#353535"/><stop offset="11.43%" stop-color="#363636"/><stop offset="14.29%" stop-color="#373737"/><stop offset="17.14%" stop-color="#383838"/><stop offset="20%" stop-color="#383838"/><stop offset="22.86%" stop-color="#393939"/><stop offset="25.71%" stop-color="#3a3a3a"/><stop offset="28.57%" stop-color="#3b3b3b"/><stop offset="31.43%" stop-color="#3c3c3c"/><stop offset="34.29%" stop-color="#3d3d3d"/><stop offset="37.14%" stop-color="#3e3e3e"/><stop offset="40%" stop-color="#3f3f3f"/><stop offset="44.29%" stop-color="#3c3c3c"/><stop offset="48.57%" stop-color="#3a3a3a"/><stop offset="52.86%" stop-color="#373737"/><stop offset="57.14%" stop-color="#353535"/><stop offset="61.43%" stop-color="#323232"/><stop offset="65.71%" stop-color="#2f2f2f"/><stop offset="70%" stop-color="#2d2d2d"/><stop offset="74.29%" stop-color="#2a2a2a"/><stop offset="78.57%" stop-color="#282828"/><stop offset="82.86%" stop-color="#262626"/><stop offset="87.14%" stop-color="#232323"/><stop offset="91.43%" stop-color="#212121"/><stop offset="95.71%" stop-color="#1e1e1e"/><stop offset="100%" stop-color="#1c1c1c"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg

{
  "slick-carbon": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.196,
            0.196,
            0.196
          ],
          "hex": "#323232"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.247,
            0.247,
            0.247
          ],
          "hex": "#3f3f3f"
        },
        "position": 0.4
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.11,
            0.11,
            0.11
          ],
          "hex": "#1c1c1c"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(180deg in oklab, #323232 0%, #3f3f3f 40%, #1c1c1c 100%)",
        "interpolation": "oklab",
        "angle": 180,
        "name": "Slick Carbon",
        "contrast": {
          "white": {
            "ratio": 10.531,
            "at": 0.3968,
            "passesAA": true,
            "passesAALarge": true
          },
          "black": {
            "ratio": 1.232,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Slick Carbon (WebGradients, MIT), rendered in OKLab."
  }
}

Tagged

white 1.91 failsblack 7.85 AA

Open in maker →

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

›take the Slick Carbon gradient (#323232, #3f3f3f, #1c1c1c), re-interpolate it in oklch, and tell me the worst-case contrast for white text

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: gradients.md · From WebGradients (MIT) — licences