brandsweets

Named gradient · WebGradients

Solid Stone

Solid Stone is a blue gradient from WebGradients (MIT) — #243949 → #517fa4 at 0°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#243949#517fa4
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
white text · worst 4.27:1 · AA large
white 4.27 AA largeblack 1.76 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.

sRGB68%
OKLab68%
OKLCH68%

Report

  • white ink: worst 4.27:1 at 100% (AA-large only); black ink: worst 1.76:1 at 0% (fails AA) → use white 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: ~16px bands at 1440px — add grain 32 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(0deg, #243949 0%, #273e4f 7.14%, #2a4255 14.29%, #2d475b 21.43%, #304c62 28.57%, #335168 35.71%, #37566e 42.86%, #3a5b75 50%, #3d607b 57.14%, #406582 64.29%, #446a89 71.43%, #476f8f 78.57%, #4a7496 85.71%, #4e7a9d 92.86%, #517fa4 100%);
  background-image: linear-gradient(0deg in oklab, #243949 0%, #517fa4 100%);
}
tailwind v4
bg-linear-to-t/oklab from-[#243949] to-[#517fa4]
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="720" y1="600" x2="720" y2="0"><stop offset="0%" stop-color="#243949"/><stop offset="7.14%" stop-color="#273e4f"/><stop offset="14.29%" stop-color="#2a4255"/><stop offset="21.43%" stop-color="#2d475b"/><stop offset="28.57%" stop-color="#304c62"/><stop offset="35.71%" stop-color="#335168"/><stop offset="42.86%" stop-color="#37566e"/><stop offset="50%" stop-color="#3a5b75"/><stop offset="57.14%" stop-color="#3d607b"/><stop offset="64.29%" stop-color="#406582"/><stop offset="71.43%" stop-color="#446a89"/><stop offset="78.57%" stop-color="#476f8f"/><stop offset="85.71%" stop-color="#4a7496"/><stop offset="92.86%" stop-color="#4e7a9d"/><stop offset="100%" stop-color="#517fa4"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "solid-stone": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.141,
            0.224,
            0.286
          ],
          "hex": "#243949"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.318,
            0.498,
            0.643
          ],
          "hex": "#517fa4"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(0deg in oklab, #243949 0%, #517fa4 100%)",
        "interpolation": "oklab",
        "angle": 0,
        "name": "Solid Stone",
        "contrast": {
          "white": {
            "ratio": 4.267,
            "at": 1,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 1.756,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Solid Stone (WebGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue gradientsCoolMutedMonochrome

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 Solid Stone gradient (#243949, #517fa4), 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