brandsweets

Named gradient · uiGradients

Hyper Blue

Hyper Blue is a blue gradient from uiGradients (MIT) — #59cde9 → #0a2a88 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.

#59cde9#0a2a88
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
white text · worst 1.85:1 · fails
white 1.85 failsblack 1.70 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.

sRGB80%
OKLab82%
OKLCH82%

Report

  • white ink: worst 1.85:1 at 0% (fails AA); black ink: worst 1.70:1 at 100% (fails AA) → use white 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, #59cde9 0%, #51c1e2 7.14%, #4ab5dc 14.29%, #42aad5 21.43%, #3b9ece 28.57%, #3493c7 35.71%, #2d87c0 42.86%, #267cba 50%, #2070b3 57.14%, #1a65ac 64.29%, #155aa5 71.43%, #104e9e 78.57%, #0c4396 85.71%, #0a378f 92.86%, #0a2a88 100%);
  background-image: linear-gradient(90deg in oklab, #59cde9 0%, #0a2a88 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#59cde9] to-[#0a2a88]
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="#59cde9"/><stop offset="7.14%" stop-color="#51c1e2"/><stop offset="14.29%" stop-color="#4ab5dc"/><stop offset="21.43%" stop-color="#42aad5"/><stop offset="28.57%" stop-color="#3b9ece"/><stop offset="35.71%" stop-color="#3493c7"/><stop offset="42.86%" stop-color="#2d87c0"/><stop offset="50%" stop-color="#267cba"/><stop offset="57.14%" stop-color="#2070b3"/><stop offset="64.29%" stop-color="#1a65ac"/><stop offset="71.43%" stop-color="#155aa5"/><stop offset="78.57%" stop-color="#104e9e"/><stop offset="85.71%" stop-color="#0c4396"/><stop offset="92.86%" stop-color="#0a378f"/><stop offset="100%" stop-color="#0a2a88"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "hyper-blue": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.349,
            0.804,
            0.914
          ],
          "hex": "#59cde9"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.039,
            0.165,
            0.533
          ],
          "hex": "#0a2a88"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #59cde9 0%, #0a2a88 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Hyper Blue",
        "contrast": {
          "white": {
            "ratio": 1.853,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 1.7,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Hyper Blue (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue 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 Hyper Blue gradient (#59cde9, #0a2a88), 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