brandsweets

Named gradient · WebGradients

Night Call

Night Call is a purple gradient from WebGradients (MIT) — #ac32e4 → #7918f2 → #4801ff at 135°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#ac32e4#7918f2#4801ff
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
white text · worst 4.85:1 · AA
white 4.85 AAblack 2.72 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.

sRGB92%
OKLab92%
OKLCH92%

Report

  • white ink: worst 4.85:1 at 0% (AA); black ink: worst 2.72:1 at 100% (fails AA) → use white text.
  • Banding high: ~15px bands at 1440px — add grain 31 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #ac32e4 0%, #a831e5 3.43%, #a430e6 6.86%, #a12fe7 10.29%, #9d2ee8 13.71%, #992de9 17.14%, #962bea 20.57%, #922aeb 24%, #8e28ec 27.43%, #8b26ed 30.86%, #8724ee 34.29%, #8422ef 37.71%, #801ff0 41.14%, #7c1cf1 44.57%, #7918f2 48%, #7618f3 51.71%, #7218f4 55.43%, #6f17f5 59.14%, #6c17f6 62.86%, #6816f7 66.57%, #6515f8 70.29%, #6114f9 74%, #5e12f9 77.71%, #5a11fa 81.43%, #570efb 85.14%, #530cfc 88.86%, #4f09fd 92.57%, #4c05fe 96.29%, #4801ff 100%);
  background-image: linear-gradient(135deg in oklab, #ac32e4 0%, #7918f2 48%, #4801ff 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#ac32e4] via-[#7918f2] via-48% to-[#4801ff]
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="#ac32e4"/><stop offset="3.43%" stop-color="#a831e5"/><stop offset="6.86%" stop-color="#a430e6"/><stop offset="10.29%" stop-color="#a12fe7"/><stop offset="13.71%" stop-color="#9d2ee8"/><stop offset="17.14%" stop-color="#992de9"/><stop offset="20.57%" stop-color="#962bea"/><stop offset="24%" stop-color="#922aeb"/><stop offset="27.43%" stop-color="#8e28ec"/><stop offset="30.86%" stop-color="#8b26ed"/><stop offset="34.29%" stop-color="#8724ee"/><stop offset="37.71%" stop-color="#8422ef"/><stop offset="41.14%" stop-color="#801ff0"/><stop offset="44.57%" stop-color="#7c1cf1"/><stop offset="48%" stop-color="#7918f2"/><stop offset="51.71%" stop-color="#7618f3"/><stop offset="55.43%" stop-color="#7218f4"/><stop offset="59.14%" stop-color="#6f17f5"/><stop offset="62.86%" stop-color="#6c17f6"/><stop offset="66.57%" stop-color="#6816f7"/><stop offset="70.29%" stop-color="#6515f8"/><stop offset="74%" stop-color="#6114f9"/><stop offset="77.71%" stop-color="#5e12f9"/><stop offset="81.43%" stop-color="#5a11fa"/><stop offset="85.14%" stop-color="#570efb"/><stop offset="88.86%" stop-color="#530cfc"/><stop offset="92.57%" stop-color="#4f09fd"/><stop offset="96.29%" stop-color="#4c05fe"/><stop offset="100%" stop-color="#4801ff"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "night-call": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.675,
            0.196,
            0.894
          ],
          "hex": "#ac32e4"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.475,
            0.094,
            0.949
          ],
          "hex": "#7918f2"
        },
        "position": 0.48
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.282,
            0.004,
            1
          ],
          "hex": "#4801ff"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #ac32e4 0%, #7918f2 48%, #4801ff 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "Night Call",
        "contrast": {
          "white": {
            "ratio": 4.849,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "black": {
            "ratio": 2.724,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Night Call (WebGradients, MIT), rendered in OKLab."
  }
}

Tagged

Purple gradientsBlue gradientsCoolVividJewel Tones

More purple 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 Night Call gradient (#ac32e4, #7918f2, #4801ff), 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