Named gradient · WebGradients

Mountain Rock

Mountain Rock is a neutral gradient from WebGradients (MIT) — #868f96 → #596164 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.

#868f96 #596164

Open in the maker Original sRGB in the maker

Aa — the quick brown fox

black text · worst 3.32:1 · AA large

white 3.29 AA largeblack 3.32 AA largebanding 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.

sRGB85%

OKLab85%

OKLCH85%

Report

white ink: worst 3.29:1 at 0% (AA-large only); black ink: worst 3.32:1 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 high: ~29px bands at 1440px — add grain 50 (≈3% soft-light noise) or shorten the ramp.

Export

css

.gradient {
  background-image: linear-gradient(0deg, #868f96 0%, #838c92 7.14%, #7f888f 14.29%, #7c858b 21.43%, #798287 28.57%, #767e84 35.71%, #727b80 42.86%, #6f787d 50%, #6c7479 57.14%, #697175 64.29%, #666e72 71.43%, #626b6e 78.57%, #5f676b 85.71%, #5c6467 92.86%, #596164 100%);
  background-image: linear-gradient(0deg in oklab, #868f96 0%, #596164 100%);
}

tailwind v4

bg-linear-to-t/oklab from-[#868f96] to-[#596164]

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="#868f96"/><stop offset="7.14%" stop-color="#838c92"/><stop offset="14.29%" stop-color="#7f888f"/><stop offset="21.43%" stop-color="#7c858b"/><stop offset="28.57%" stop-color="#798287"/><stop offset="35.71%" stop-color="#767e84"/><stop offset="42.86%" stop-color="#727b80"/><stop offset="50%" stop-color="#6f787d"/><stop offset="57.14%" stop-color="#6c7479"/><stop offset="64.29%" stop-color="#697175"/><stop offset="71.43%" stop-color="#666e72"/><stop offset="78.57%" stop-color="#626b6e"/><stop offset="85.71%" stop-color="#5f676b"/><stop offset="92.86%" stop-color="#5c6467"/><stop offset="100%" stop-color="#596164"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg

{
  "mountain-rock": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.525,
            0.561,
            0.588
          ],
          "hex": "#868f96"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.349,
            0.38,
            0.392
          ],
          "hex": "#596164"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(0deg in oklab, #868f96 0%, #596164 100%)",
        "interpolation": "oklab",
        "angle": 0,
        "name": "Mountain Rock",
        "contrast": {
          "white": {
            "ratio": 3.29,
            "at": 0,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 3.319,
            "at": 1,
            "passesAA": false,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Mountain Rock (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 Mountain Rock gradient (#868f96, #596164), 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