brandsweets

Named gradient · WebGradients

Phoenix Start

Phoenix Start is a red gradient from WebGradients (MIT) — #f83600 → #f9d423 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.

#f83600#f9d423
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 5.52:1 · AA
white 1.45 failsblack 5.52 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.

sRGB80%
OKLab81%
OKLCH84%

Report

  • white ink: worst 1.45:1 at 100% (fails AA); black ink: worst 5.52:1 at 0% (AA) → use black text.
  • Banding medium: ~9px bands at 1440px — add grain 18 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(0deg, #f83600 0%, #f94702 7.14%, #fb5604 14.29%, #fc6307 21.43%, #fd6f0a 28.57%, #fd7a0d 35.71%, #fe850f 42.86%, #fe9012 50%, #fe9a15 57.14%, #fea417 64.29%, #feae1a 71.43%, #fdb71c 78.57%, #fcc11e 85.71%, #fbcb21 92.86%, #f9d423 100%);
  background-image: linear-gradient(0deg in oklab, #f83600 0%, #f9d423 100%);
}
tailwind v4
bg-linear-to-t/oklab from-[#f83600] to-[#f9d423]
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="#f83600"/><stop offset="7.14%" stop-color="#f94702"/><stop offset="14.29%" stop-color="#fb5604"/><stop offset="21.43%" stop-color="#fc6307"/><stop offset="28.57%" stop-color="#fd6f0a"/><stop offset="35.71%" stop-color="#fd7a0d"/><stop offset="42.86%" stop-color="#fe850f"/><stop offset="50%" stop-color="#fe9012"/><stop offset="57.14%" stop-color="#fe9a15"/><stop offset="64.29%" stop-color="#fea417"/><stop offset="71.43%" stop-color="#feae1a"/><stop offset="78.57%" stop-color="#fdb71c"/><stop offset="85.71%" stop-color="#fcc11e"/><stop offset="92.86%" stop-color="#fbcb21"/><stop offset="100%" stop-color="#f9d423"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "phoenix-start": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.973,
            0.212,
            0
          ],
          "hex": "#f83600"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.976,
            0.831,
            0.137
          ],
          "hex": "#f9d423"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(0deg in oklab, #f83600 0%, #f9d423 100%)",
        "interpolation": "oklab",
        "angle": 0,
        "name": "Phoenix Start",
        "contrast": {
          "white": {
            "ratio": 1.451,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "black": {
            "ratio": 5.519,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Phoenix Start (WebGradients, MIT), rendered in OKLab."
  }
}

Tagged

Red gradientsYellow gradientsWarmVividSunsetNeon

More red 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 Phoenix Start gradient (#f83600, #f9d423), 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