Named gradient · uiGradients

Sublime Vivid

Sublime Vivid is a pink gradient from uiGradients (MIT) — #fc466b → #3f5efb 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.

#fc466b #3f5efb

Open in the maker Original sRGB in the maker

Aa — the quick brown fox

black text · worst 4.20:1 · AA large

white 3.37 AA largeblack 4.20 AA largebanding 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.

sRGB71%

OKLab60%

OKLCH96%

Report

white ink: worst 3.37:1 at 0% (AA-large only); black ink: worst 4.20:1 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 medium: ~8px bands at 1440px — add grain 15 (≈2% soft-light noise) or shorten the ramp.

Export

css

.gradient {
  background-image: linear-gradient(90deg, #fc466b 0%, #f04f78 7.14%, #e45684 14.29%, #d85b8f 21.43%, #cc609a 28.57%, #bf63a5 35.71%, #b365af 42.86%, #a667b9 50%, #9968c3 57.14%, #8c68cc 64.29%, #7f67d6 71.43%, #7066df 78.57%, #6264e8 85.71%, #5162f2 92.86%, #3f5efb 100%);
  background-image: linear-gradient(90deg in oklab, #fc466b 0%, #3f5efb 100%);
}

tailwind v4

bg-linear-to-r/oklab from-[#fc466b] to-[#3f5efb]

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="#fc466b"/><stop offset="7.14%" stop-color="#f04f78"/><stop offset="14.29%" stop-color="#e45684"/><stop offset="21.43%" stop-color="#d85b8f"/><stop offset="28.57%" stop-color="#cc609a"/><stop offset="35.71%" stop-color="#bf63a5"/><stop offset="42.86%" stop-color="#b365af"/><stop offset="50%" stop-color="#a667b9"/><stop offset="57.14%" stop-color="#9968c3"/><stop offset="64.29%" stop-color="#8c68cc"/><stop offset="71.43%" stop-color="#7f67d6"/><stop offset="78.57%" stop-color="#7066df"/><stop offset="85.71%" stop-color="#6264e8"/><stop offset="92.86%" stop-color="#5162f2"/><stop offset="100%" stop-color="#3f5efb"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>

dtcg

{
  "sublime-vivid": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.988,
            0.275,
            0.42
          ],
          "hex": "#fc466b"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.247,
            0.369,
            0.984
          ],
          "hex": "#3f5efb"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #fc466b 0%, #3f5efb 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Sublime Vivid",
        "contrast": {
          "white": {
            "ratio": 3.372,
            "at": 0,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 4.2,
            "at": 0.9961,
            "passesAA": false,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Sublime Vivid (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

white 1.06 failsblack 9.08 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 Sublime Vivid gradient (#fc466b, #3f5efb), 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