Named gradient · WebGradients

Risky Concrete

Risky Concrete is a neutral gradient from WebGradients (MIT) — #c4c5c7 → #dcdddf → #ebebeb at 0°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#c4c5c7 #dcdddf #ebebeb

Open in the maker Original sRGB in the maker

Aa — the quick brown fox

black text · worst 12.16:1 · AA

white 1.19 failsblack 12.16 AAbanding 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.

sRGB0%

OKLab0%

OKLCH0%

Report

white ink: worst 1.19:1 at 98% (fails AA); black ink: worst 12.16:1 at 0% (AA) → use black text.
Banding high: ~46px bands at 1440px — add grain 50 (≈3% soft-light noise) or shorten the ramp.

Export

css

.gradient {
  background-image: linear-gradient(0deg, #c4c5c7 0%, #c6c7c9 3.71%, #c7c8ca 7.43%, #c9cacc 11.14%, #cbccce 14.86%, #cdced0 18.57%, #cecfd1 22.29%, #d0d1d3 26%, #d2d3d5 29.71%, #d3d4d6 33.43%, #d5d6d8 37.14%, #d7d8da 40.86%, #d9dadc 44.57%, #dadbdd 48.29%, #dcdddf 52%, #dddee0 55.43%, #dedfe1 58.86%, #dfe0e2 62.29%, #e0e1e2 65.71%, #e1e2e3 69.14%, #e2e3e4 72.57%, #e3e4e5 76%, #e5e5e6 79.43%, #e6e6e7 82.86%, #e7e7e8 86.29%, #e8e8e8 89.71%, #e9e9e9 93.14%, #eaeaea 96.57%, #ebebeb 100%);
  background-image: linear-gradient(0deg in oklab, #c4c5c7 0%, #dcdddf 52%, #ebebeb 100%);
}

tailwind v4

bg-linear-to-t/oklab from-[#c4c5c7] via-[#dcdddf] via-52% to-[#ebebeb]

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="600" x2="720" y2="0"><stop offset="0%" stop-color="#c4c5c7"/><stop offset="3.71%" stop-color="#c6c7c9"/><stop offset="7.43%" stop-color="#c7c8ca"/><stop offset="11.14%" stop-color="#c9cacc"/><stop offset="14.86%" stop-color="#cbccce"/><stop offset="18.57%" stop-color="#cdced0"/><stop offset="22.29%" stop-color="#cecfd1"/><stop offset="26%" stop-color="#d0d1d3"/><stop offset="29.71%" stop-color="#d2d3d5"/><stop offset="33.43%" stop-color="#d3d4d6"/><stop offset="37.14%" stop-color="#d5d6d8"/><stop offset="40.86%" stop-color="#d7d8da"/><stop offset="44.57%" stop-color="#d9dadc"/><stop offset="48.29%" stop-color="#dadbdd"/><stop offset="52%" stop-color="#dcdddf"/><stop offset="55.43%" stop-color="#dddee0"/><stop offset="58.86%" stop-color="#dedfe1"/><stop offset="62.29%" stop-color="#dfe0e2"/><stop offset="65.71%" stop-color="#e0e1e2"/><stop offset="69.14%" stop-color="#e1e2e3"/><stop offset="72.57%" stop-color="#e2e3e4"/><stop offset="76%" stop-color="#e3e4e5"/><stop offset="79.43%" stop-color="#e5e5e6"/><stop offset="82.86%" stop-color="#e6e6e7"/><stop offset="86.29%" stop-color="#e7e7e8"/><stop offset="89.71%" stop-color="#e8e8e8"/><stop offset="93.14%" stop-color="#e9e9e9"/><stop offset="96.57%" stop-color="#eaeaea"/><stop offset="100%" stop-color="#ebebeb"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg

{
  "risky-concrete": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.769,
            0.773,
            0.78
          ],
          "hex": "#c4c5c7"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.863,
            0.867,
            0.875
          ],
          "hex": "#dcdddf"
        },
        "position": 0.52
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.922,
            0.922,
            0.922
          ],
          "hex": "#ebebeb"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(0deg in oklab, #c4c5c7 0%, #dcdddf 52%, #ebebeb 100%)",
        "interpolation": "oklab",
        "angle": 0,
        "name": "Risky Concrete",
        "contrast": {
          "white": {
            "ratio": 1.192,
            "at": 0.9841,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 12.158,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Risky Concrete (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 Risky Concrete gradient (#c4c5c7, #dcdddf, #ebebeb), 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