brandsweets

Named gradient · uiGradients

Rainbow Blue

Rainbow Blue is a green gradient from uiGradients (MIT) — #00f260 → #0575e6 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.

#00f260#0575e6
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 4.69:1 · AA
white 1.51 failsblack 4.69 AAbanding 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.

sRGB51%
OKLab54%
OKLCH55%

Report

  • white ink: worst 1.51:1 at 0% (fails AA); black ink: worst 4.69:1 at 100% (AA) → use black text.
  • Banding medium: ~11px bands at 1440px — add grain 22 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #00f260 0%, #00ea72 7.14%, #00e281 14.29%, #00da8e 21.43%, #00d299 28.57%, #00caa3 35.71%, #00c2ad 42.86%, #00b9b5 50%, #00b0bd 57.14%, #00a7c5 64.29%, #009ecc 71.43%, #0095d3 78.57%, #008bda 85.71%, #0080e0 92.86%, #0575e6 100%);
  background-image: linear-gradient(90deg in oklab, #00f260 0%, #0575e6 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#00f260] to-[#0575e6]
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="#00f260"/><stop offset="7.14%" stop-color="#00ea72"/><stop offset="14.29%" stop-color="#00e281"/><stop offset="21.43%" stop-color="#00da8e"/><stop offset="28.57%" stop-color="#00d299"/><stop offset="35.71%" stop-color="#00caa3"/><stop offset="42.86%" stop-color="#00c2ad"/><stop offset="50%" stop-color="#00b9b5"/><stop offset="57.14%" stop-color="#00b0bd"/><stop offset="64.29%" stop-color="#00a7c5"/><stop offset="71.43%" stop-color="#009ecc"/><stop offset="78.57%" stop-color="#0095d3"/><stop offset="85.71%" stop-color="#008bda"/><stop offset="92.86%" stop-color="#0080e0"/><stop offset="100%" stop-color="#0575e6"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "rainbow-blue": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0,
            0.949,
            0.376
          ],
          "hex": "#00f260"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.02,
            0.459,
            0.902
          ],
          "hex": "#0575e6"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #00f260 0%, #0575e6 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Rainbow Blue",
        "contrast": {
          "white": {
            "ratio": 1.514,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 4.694,
            "at": 1,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Rainbow Blue (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

Green gradientsBlue gradientsCoolVividOceanNeon

More green 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 Rainbow Blue gradient (#00f260, #0575e6), 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