Colour to colour

Navy Blue to Steel Blue gradient

Navy Blue (#000080) into Steel Blue (#4682b4) — 18° apart on the OKLCH hue wheel. Below: the same two stops interpolated in OKLab and in OKLCH, side by side, because the difference is real and most generators never let you see it; then an eased version and a mesh, each with the worst-case contrast for white and black text. The engine's own pick for this pair is oklab — both colours are in the palette and the hue gap is small enough that the straight line stays clean.

Navy Blue → Steel Blue
white text · worst 4.11:1 · AA large
white 4.11 AA largeblack 1.31 failsbanding medium

OKLab and OKLCH, side by side

Aa

A straight line through the a/b plane: the two hues meet halfway and desaturate a little at the midpoint. The safe default — it is what CSS and Tailwind default to.

white 4.11 AA largeblack 1.31 failsbanding medium
css
linear-gradient(135deg in oklab, #000080 0%, #4682b4 100%)
Aa

OKLCH (shorter hue)

Open in maker →

Chroma and hue interpolate separately, so the midpoint keeps its saturation and the hue travels the short way round the wheel — richer, and it can pass through hues neither colour has.

white 4.11 AA largeblack 1.31 failsbanding medium
css
linear-gradient(135deg in oklch shorter hue, #000080 0%, #4682b4 100%)

And the sRGB line most tools draw, for comparison — the number is the chroma that survives at the dullest point.

sRGB69%
OKLab69%
OKLCH69%

Eased and mesh

Aa

Eased (soft)

Open in maker →

A cubic-bezier(.4, 0, .6, 1) mix ratio baked into 15 stops: the transition lingers on each colour and moves faster through the middle, which is what makes a gradient read as designed rather than default.

white 4.11 AA largeblack 1.31 failsbanding medium
css
linear-gradient(135deg in oklab, #000080 0%, #000481 8.28%, #001083 16.03%, #001c87 23.35%, #00288b 30.32%, #003490 37.03%, #044096 43.56%, #114c9b 50%, #1d58a1 56.44%, #2763a6 62.97%, #316dab 69.68%, #3a75ae 76.65%, #407cb1 83.97%, #4480b3 91.72%, #4682b4 100%)
Aa

Both colours as stacked radials over a base, laid out by a seeded Poisson-disc sampler — the same seed gives the same mesh forever. Exports as CSS, SVG and PNG.

white 6.05 AAblack 2.53 failsbanding low
css
background-color: #114c9b;
background-image: radial-gradient(circle farthest-corner at 97.07% 12.98%, rgba(0, 0, 128, 0.779) 0%, rgba(0, 0, 128, 0) 57.15%), radial-gradient(circle farthest-corner at 56.3% 53.46%, rgba(70, 130, 180, 0.797) 0%, rgba(70, 130, 180, 0) 58.58%);
background-image: radial-gradient(circle farthest-corner at 97.07% 12.98%, oklch(from #000080 l c h / 0.7792) 0%, rgb(from #000080 r g b / 0) 57.15%), radial-gradient(circle farthest-corner at 56.3% 53.46%, oklch(from #4682b4 l c h / 0.7972) 0%, rgb(from #4682b4 r g b / 0) 58.58%);

Report

  • white ink: worst 4.11:1 at 100% (AA-large only); black ink: worst 1.31:1 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: ~11px bands at 1440px — add grain 23 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(135deg, #000080 0%, #001384 7.14%, #002088 14.29%, #002a8c 21.43%, #003390 28.57%, #013c94 35.71%, #084498 42.86%, #114c9b 50%, #19549f 57.14%, #205ca3 64.29%, #2864a6 71.43%, #2f6baa 78.57%, #3773ad 85.71%, #3e7ab1 92.86%, #4682b4 100%);
  background-image: linear-gradient(135deg in oklab, #000080 0%, #4682b4 100%);
}
tailwind v4
bg-linear-to-br/oklab from-[#000080] to-[#4682b4]
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="#000080"/><stop offset="7.14%" stop-color="#001384"/><stop offset="14.29%" stop-color="#002088"/><stop offset="21.43%" stop-color="#002a8c"/><stop offset="28.57%" stop-color="#003390"/><stop offset="35.71%" stop-color="#013c94"/><stop offset="42.86%" stop-color="#084498"/><stop offset="50%" stop-color="#114c9b"/><stop offset="57.14%" stop-color="#19549f"/><stop offset="64.29%" stop-color="#205ca3"/><stop offset="71.43%" stop-color="#2864a6"/><stop offset="78.57%" stop-color="#2f6baa"/><stop offset="85.71%" stop-color="#3773ad"/><stop offset="92.86%" stop-color="#3e7ab1"/><stop offset="100%" stop-color="#4682b4"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "navy-to-steelblue": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0,
            0,
            0.502
          ],
          "hex": "#000080"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.275,
            0.51,
            0.706
          ],
          "hex": "#4682b4"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(135deg in oklab, #000080 0%, #4682b4 100%)",
        "interpolation": "oklab",
        "angle": 135,
        "name": "navy-to-steelblue",
        "contrast": {
          "white": {
            "ratio": 4.108,
            "at": 1,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 1.312,
            "at": 0,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Navy Blue to Steel Blue, interpolated in oklab."
  }
}

More from Navy Blue

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

make a navy blue to steel blue hero gradient in oklch that passes AA for white text, with grain if it bands

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: gradients.md