brandsweets

Named gradient · uiGradients

Racker

Racker is a red gradient from uiGradients (MIT) — #eb0000 → #95008a → #3300fc at 90°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#eb0000#95008a#3300fc
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
white text · worst 4.63:1 · AA
white 4.63 AAblack 2.54 failsbanding medium

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.

sRGB73%
OKLab72%
OKLCH77%

Report

  • white ink: worst 4.63:1 at 0% (AA); black ink: worst 2.54:1 at 100% (fails AA) → use white text.
  • Banding medium: ~6px bands at 1440px — add grain 11 (≈1% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #eb0000 0%, #e40921 3.57%, #de1031 7.14%, #d7143d 10.71%, #d11747 14.29%, #cb1950 17.86%, #c41a58 21.43%, #be1a5f 25%, #b81a66 28.57%, #b2196d 32.14%, #ac1773 35.71%, #a61479 39.29%, #a0107f 42.86%, #9b0985 46.43%, #95008a 50%, #8f0f92 53.57%, #89189a 57.14%, #821ea2 60.71%, #7c21aa 64.29%, #7624b2 67.86%, #6f25ba 71.43%, #6826c3 75%, #6225cb 78.57%, #5b24d3 82.14%, #5322db 85.71%, #4c1ee3 89.29%, #4419eb 92.86%, #3c10f4 96.43%, #3300fc 100%);
  background-image: linear-gradient(90deg in oklab, #eb0000 0%, #95008a 50%, #3300fc 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#eb0000] via-[#95008a] to-[#3300fc]
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="0" y1="300" x2="1440" y2="300"><stop offset="0%" stop-color="#eb0000"/><stop offset="3.57%" stop-color="#e40921"/><stop offset="7.14%" stop-color="#de1031"/><stop offset="10.71%" stop-color="#d7143d"/><stop offset="14.29%" stop-color="#d11747"/><stop offset="17.86%" stop-color="#cb1950"/><stop offset="21.43%" stop-color="#c41a58"/><stop offset="25%" stop-color="#be1a5f"/><stop offset="28.57%" stop-color="#b81a66"/><stop offset="32.14%" stop-color="#b2196d"/><stop offset="35.71%" stop-color="#ac1773"/><stop offset="39.29%" stop-color="#a61479"/><stop offset="42.86%" stop-color="#a0107f"/><stop offset="46.43%" stop-color="#9b0985"/><stop offset="50%" stop-color="#95008a"/><stop offset="53.57%" stop-color="#8f0f92"/><stop offset="57.14%" stop-color="#89189a"/><stop offset="60.71%" stop-color="#821ea2"/><stop offset="64.29%" stop-color="#7c21aa"/><stop offset="67.86%" stop-color="#7624b2"/><stop offset="71.43%" stop-color="#6f25ba"/><stop offset="75%" stop-color="#6826c3"/><stop offset="78.57%" stop-color="#6225cb"/><stop offset="82.14%" stop-color="#5b24d3"/><stop offset="85.71%" stop-color="#5322db"/><stop offset="89.29%" stop-color="#4c1ee3"/><stop offset="92.86%" stop-color="#4419eb"/><stop offset="96.43%" stop-color="#3c10f4"/><stop offset="100%" stop-color="#3300fc"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "racker": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.922,
            0,
            0
          ],
          "hex": "#eb0000"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.584,
            0,
            0.541
          ],
          "hex": "#95008a"
        },
        "position": 0.5
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.2,
            0,
            0.988
          ],
          "hex": "#3300fc"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #eb0000 0%, #95008a 50%, #3300fc 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Racker",
        "contrast": {
          "white": {
            "ratio": 4.633,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "black": {
            "ratio": 2.543,
            "at": 0.9979,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Racker (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

Red gradientsBlue gradientsVividJewel Tones

More red 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 Racker gradient (#eb0000, #95008a, #3300fc), 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 uiGradients (MIT) — licences