brandsweets

Named gradient · uiGradients

Emerald Sea

Emerald Sea is a blue gradient from uiGradients (MIT) — #05386b → #5cdb95 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.

#05386b#5cdb95
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 1.78:1 · fails
white 1.75 failsblack 1.78 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.

sRGB58%
OKLab63%
OKLCH76%

Report

  • white ink: worst 1.75:1 at 100% (fails AA); black ink: worst 1.78:1 at 0% (fails AA) → use black text.
  • Neither ink passes AA at the worst point — treat as decorative or add a scrim (rgba(0,0,0,.35) typically lifts white ink past 4:1).
  • Banding medium: ~9px bands at 1440px — add grain 18 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #05386b 0%, #07436f 7.14%, #0a4f73 14.29%, #105a77 21.43%, #15657b 28.57%, #1c717f 35.71%, #227c82 42.86%, #298885 50%, #309388 57.14%, #379f8b 64.29%, #3eab8d 71.43%, #45b790 78.57%, #4dc392 85.71%, #54cf93 92.86%, #5cdb95 100%);
  background-image: linear-gradient(90deg in oklab, #05386b 0%, #5cdb95 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#05386b] to-[#5cdb95]
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="#05386b"/><stop offset="7.14%" stop-color="#07436f"/><stop offset="14.29%" stop-color="#0a4f73"/><stop offset="21.43%" stop-color="#105a77"/><stop offset="28.57%" stop-color="#15657b"/><stop offset="35.71%" stop-color="#1c717f"/><stop offset="42.86%" stop-color="#227c82"/><stop offset="50%" stop-color="#298885"/><stop offset="57.14%" stop-color="#309388"/><stop offset="64.29%" stop-color="#379f8b"/><stop offset="71.43%" stop-color="#3eab8d"/><stop offset="78.57%" stop-color="#45b790"/><stop offset="85.71%" stop-color="#4dc392"/><stop offset="92.86%" stop-color="#54cf93"/><stop offset="100%" stop-color="#5cdb95"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "emerald-sea": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.02,
            0.22,
            0.42
          ],
          "hex": "#05386b"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.361,
            0.859,
            0.584
          ],
          "hex": "#5cdb95"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #05386b 0%, #5cdb95 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Emerald Sea",
        "contrast": {
          "white": {
            "ratio": 1.747,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 1.784,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Emerald Sea (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue gradientsGreen gradientsCoolOcean

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 Emerald Sea gradient (#05386b, #5cdb95), 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