brandsweets

Named gradient · WebGradients

Crystal River

Crystal River is a blue gradient from WebGradients (MIT) — #22e1ff → #1d8fe1 → #625eb1 at 135°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#22e1ff#1d8fe1#625eb1
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 3.75:1 · AA large
white 1.58 failsblack 3.75 AA largebanding 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.

sRGB95%
OKLab95%
OKLCH95%

Report

  • white ink: worst 1.58:1 at 0% (fails AA); black ink: worst 3.75:1 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 high: ~11px bands at 1440px — add grain 22 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #22e1ff 0%, #21dbfd 3.43%, #20d5fb 6.86%, #1fcff9 10.29%, #1ec9f7 13.71%, #1dc4f5 17.14%, #1dbef3 20.57%, #1db8f1 24%, #1cb2ee 27.43%, #1cacec 30.86%, #1ca6ea 34.29%, #1ca1e8 37.71%, #1c9be6 41.14%, #1d95e3 44.57%, #1d8fe1 48%, #2a8cde 51.71%, #3388da 55.43%, #3a85d7 59.14%, #4181d3 62.86%, #467ed0 66.57%, #4a7acc 70.29%, #4f77c9 74%, #5273c5 77.71%, #5670c2 81.43%, #596cbe 85.14%, #5b69bb 88.86%, #5e65b8 92.57%, #6062b4 96.29%, #625eb1 100%);
  background-image: linear-gradient(135deg in oklab, #22e1ff 0%, #1d8fe1 48%, #625eb1 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#22e1ff] via-[#1d8fe1] via-48% to-[#625eb1]
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="210" y1="-210" x2="1230" y2="810"><stop offset="0%" stop-color="#22e1ff"/><stop offset="3.43%" stop-color="#21dbfd"/><stop offset="6.86%" stop-color="#20d5fb"/><stop offset="10.29%" stop-color="#1fcff9"/><stop offset="13.71%" stop-color="#1ec9f7"/><stop offset="17.14%" stop-color="#1dc4f5"/><stop offset="20.57%" stop-color="#1dbef3"/><stop offset="24%" stop-color="#1db8f1"/><stop offset="27.43%" stop-color="#1cb2ee"/><stop offset="30.86%" stop-color="#1cacec"/><stop offset="34.29%" stop-color="#1ca6ea"/><stop offset="37.71%" stop-color="#1ca1e8"/><stop offset="41.14%" stop-color="#1c9be6"/><stop offset="44.57%" stop-color="#1d95e3"/><stop offset="48%" stop-color="#1d8fe1"/><stop offset="51.71%" stop-color="#2a8cde"/><stop offset="55.43%" stop-color="#3388da"/><stop offset="59.14%" stop-color="#3a85d7"/><stop offset="62.86%" stop-color="#4181d3"/><stop offset="66.57%" stop-color="#467ed0"/><stop offset="70.29%" stop-color="#4a7acc"/><stop offset="74%" stop-color="#4f77c9"/><stop offset="77.71%" stop-color="#5273c5"/><stop offset="81.43%" stop-color="#5670c2"/><stop offset="85.14%" stop-color="#596cbe"/><stop offset="88.86%" stop-color="#5b69bb"/><stop offset="92.57%" stop-color="#5e65b8"/><stop offset="96.29%" stop-color="#6062b4"/><stop offset="100%" stop-color="#625eb1"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "crystal-river": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.133,
            0.882,
            1
          ],
          "hex": "#22e1ff"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.114,
            0.561,
            0.882
          ],
          "hex": "#1d8fe1"
        },
        "position": 0.48
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.384,
            0.369,
            0.694
          ],
          "hex": "#625eb1"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #22e1ff 0%, #1d8fe1 48%, #625eb1 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "Crystal River",
        "contrast": {
          "white": {
            "ratio": 1.581,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 3.755,
            "at": 1,
            "passesAA": false,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Crystal River (WebGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue gradientsTeal 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 Crystal River gradient (#22e1ff, #1d8fe1, #625eb1), 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 WebGradients (MIT) — licences