brandsweets

Named gradient · WebGradients

October Silence

October Silence is a blue gradient from WebGradients (MIT) — #b721ff → #21d4fd at 340°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#b721ff#21d4fd
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 4.67:1 · AA
white 1.76 failsblack 4.67 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.

sRGB65%
OKLab58%
OKLCH65%

Report

  • white ink: worst 1.76:1 at 100% (fails AA); black ink: worst 4.67:1 at 0% (AA) → use black text.
  • Banding high: ~8px bands at 1440px — add grain 16 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(340deg, #b721ff 0%, #b43dff 7.14%, #b04fff 14.29%, #ac5fff 21.43%, #a86dff 28.57%, #a379ff 35.71%, #9d85ff 42.86%, #9690ff 50%, #8e9aff 57.14%, #85a4ff 64.29%, #7baeff 71.43%, #6eb8ff 78.57%, #5ec1fe 85.71%, #48cbfe 92.86%, #21d4fd 100%);
  background-image: linear-gradient(340deg in oklab, #b721ff 0%, #21d4fd 100%);
}
tailwind v4
bg-linear-340/oklab from-[#b721ff] to-[#21d4fd]
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="900.6421" y1="796.3102" x2="539.3579" y2="-196.3102"><stop offset="0%" stop-color="#b721ff"/><stop offset="7.14%" stop-color="#b43dff"/><stop offset="14.29%" stop-color="#b04fff"/><stop offset="21.43%" stop-color="#ac5fff"/><stop offset="28.57%" stop-color="#a86dff"/><stop offset="35.71%" stop-color="#a379ff"/><stop offset="42.86%" stop-color="#9d85ff"/><stop offset="50%" stop-color="#9690ff"/><stop offset="57.14%" stop-color="#8e9aff"/><stop offset="64.29%" stop-color="#85a4ff"/><stop offset="71.43%" stop-color="#7baeff"/><stop offset="78.57%" stop-color="#6eb8ff"/><stop offset="85.71%" stop-color="#5ec1fe"/><stop offset="92.86%" stop-color="#48cbfe"/><stop offset="100%" stop-color="#21d4fd"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "october-silence": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.718,
            0.129,
            1
          ],
          "hex": "#b721ff"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.129,
            0.831,
            0.992
          ],
          "hex": "#21d4fd"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(340deg in oklab, #b721ff 0%, #21d4fd 100%)",
        "interpolation": "oklab",
        "angle": 340,
        "name": "October Silence",
        "contrast": {
          "white": {
            "ratio": 1.765,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 4.675,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "October Silence (WebGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue gradientsPurple gradientsCoolVividNeon

More blue gradients

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 October Silence gradient (#b721ff, #21d4fd), 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