Named gradient · uiGradients

Blood Red

Blood Red is a red gradient from uiGradients (MIT) — #f85032 → #e73827 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.

Aa — the quick brown fox
black text · worst 4.99:1 · AA
white 3.40 AA largeblack 4.99 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.

sRGB99%
OKLab99%
OKLCH99%

Report

  • white ink: worst 3.40:1 at 0% (AA-large only); black ink: worst 4.99:1 at 98% (AA) → use black text.
  • Banding high: ~60px bands at 1440px — add grain 50 (≈3% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #f85032 0%, #f74e31 7.14%, #f64d30 14.29%, #f44b30 21.43%, #f3492f 28.57%, #f2482e 35.71%, #f1462d 42.86%, #f0442d 50%, #ee432c 57.14%, #ed412b 64.29%, #ec3f2a 71.43%, #eb3d29 78.57%, #e93c29 85.71%, #e83a28 92.86%, #e73827 100%);
  background-image: linear-gradient(90deg in oklab, #f85032 0%, #e73827 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#f85032] to-[#e73827]
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="#f85032"/><stop offset="7.14%" stop-color="#f74e31"/><stop offset="14.29%" stop-color="#f64d30"/><stop offset="21.43%" stop-color="#f44b30"/><stop offset="28.57%" stop-color="#f3492f"/><stop offset="35.71%" stop-color="#f2482e"/><stop offset="42.86%" stop-color="#f1462d"/><stop offset="50%" stop-color="#f0442d"/><stop offset="57.14%" stop-color="#ee432c"/><stop offset="64.29%" stop-color="#ed412b"/><stop offset="71.43%" stop-color="#ec3f2a"/><stop offset="78.57%" stop-color="#eb3d29"/><stop offset="85.71%" stop-color="#e93c29"/><stop offset="92.86%" stop-color="#e83a28"/><stop offset="100%" stop-color="#e73827"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "blood-red": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.973,
            0.314,
            0.196
          ],
          "hex": "#f85032"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.906,
            0.22,
            0.153
          ],
          "hex": "#e73827"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #f85032 0%, #e73827 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Blood Red",
        "contrast": {
          "white": {
            "ratio": 3.395,
            "at": 0,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 4.993,
            "at": 0.9841,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Blood Red (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

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 Blood Red gradient (#f85032, #e73827), 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