brandsweets

Named gradient · uiGradients

Ukraine

Ukraine is a blue gradient from uiGradients (MIT) — #004ff9 → #fff94c 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.

#004ff9#fff94c
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 3.49:1 · AA large
white 1.11 failsblack 3.49 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.

sRGB18%
OKLab21%
OKLCH53%

Report

  • white ink: worst 1.11:1 at 100% (fails AA); black ink: worst 3.49:1 at 0% (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: ~6px bands at 1440px — add grain 9 (≈1% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #004ff9 0%, #1363f3 7.14%, #2773ed 14.29%, #3982e6 21.43%, #4b8fdf 28.57%, #5d9cd8 35.71%, #6fa8cf 42.86%, #81b3c6 50%, #92bebc 57.14%, #a4c8b1 64.29%, #b6d2a4 71.43%, #c8dc95 78.57%, #dae683 85.71%, #edf06c 92.86%, #fff94c 100%);
  background-image: linear-gradient(90deg in oklab, #004ff9 0%, #fff94c 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#004ff9] to-[#fff94c]
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="#004ff9"/><stop offset="7.14%" stop-color="#1363f3"/><stop offset="14.29%" stop-color="#2773ed"/><stop offset="21.43%" stop-color="#3982e6"/><stop offset="28.57%" stop-color="#4b8fdf"/><stop offset="35.71%" stop-color="#5d9cd8"/><stop offset="42.86%" stop-color="#6fa8cf"/><stop offset="50%" stop-color="#81b3c6"/><stop offset="57.14%" stop-color="#92bebc"/><stop offset="64.29%" stop-color="#a4c8b1"/><stop offset="71.43%" stop-color="#b6d2a4"/><stop offset="78.57%" stop-color="#c8dc95"/><stop offset="85.71%" stop-color="#dae683"/><stop offset="92.86%" stop-color="#edf06c"/><stop offset="100%" stop-color="#fff94c"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "ukraine": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0,
            0.31,
            0.976
          ],
          "hex": "#004ff9"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            1,
            0.976,
            0.298
          ],
          "hex": "#fff94c"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #004ff9 0%, #fff94c 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Ukraine",
        "contrast": {
          "white": {
            "ratio": 1.111,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 3.486,
            "at": 0,
            "passesAA": false,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Ukraine (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue gradientsYellow gradientsVivid

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 Ukraine gradient (#004ff9, #fff94c), 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