Obsidian Harbour gradient

A 3-color linear CSS gradient from #000B15 to #453768, interpolated in OKLCH so the middle stays vivid.

DarkCoolBluePurple

Stops

HEXRGBOKLCHPosition
#000B15 rgb(0, 11, 21) oklch(14.2% 0.032 238.2) 0%
#14234D rgb(20, 35, 77) oklch(27% 0.08 266.3) 50%
#453768 rgb(69, 55, 104) oklch(37.6% 0.083 295.3) 100%

CSS

The first declaration is a plain sRGB gradient for every browser. The second interpolates in OKLCH, which keeps the middle as vivid as the ends.

background: linear-gradient(270deg, #000B15, #14234D, #453768);
background: linear-gradient(270deg in oklch, #000B15, #14234D, #453768);

Tailwind CSS v4

bg-linear-270/oklch from-[#000B15] via-[#14234D] to-[#453768]

Make it your own

Change the stops, angle and type in the Gradient Maker, or turn the stops into a palette.