#548BBF is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #548BBF works with other colors. Named schemes with #548BBF in its natural role, and a note on why the supporting colors balance it.
Ocean Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Ocean Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Ocean Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Ocean Blue.
Ocean Blue is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Ocean Blue carrying the quiet middle.
Ocean Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
How #548BBF actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.
Not a swatch to memorise — a color to build with. Here is #548BBF at work across the surfaces designers actually ship.
:root {
--color-base: #548BBF;
--color-base-rgb: 84 139 191;
--color-base-oklch: oklch(62.1% 0.098 248.4);
--color-50: #F3F7FB;
--color-100: #E1EBF5;
--color-200: #C4D7E9;
--color-300: #9AB9D5;
--color-400: #739ABF;
--color-500: #527CA3;
--color-600: #44627E;
--color-700: #35485A;
--color-800: #25313C;
--color-900: #181F25;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
ocean-blue: {
50: '#F3F7FB',
100: '#E1EBF5',
200: '#C4D7E9',
300: '#9AB9D5',
400: '#739ABF',
500: '#527CA3',
600: '#44627E',
700: '#35485A',
800: '#25313C',
900: '#181F25',
},
}
$base: #548BBF; $base-ink: #141310; $base-50: #F3F7FB; $base-100: #E1EBF5; $base-200: #C4D7E9; $base-300: #9AB9D5; $base-400: #739ABF; $base-500: #527CA3; $base-600: #44627E; $base-700: #35485A; $base-800: #25313C; $base-900: #181F25; $base-hover: #3B70A1; $base-subtle: #D0DCE8;
{
"color": {
"base": {
"value": "#548BBF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F7FB",
"type": "color"
},
"100": {
"value": "#E1EBF5",
"type": "color"
},
"200": {
"value": "#C4D7E9",
"type": "color"
},
"300": {
"value": "#9AB9D5",
"type": "color"
},
"400": {
"value": "#739ABF",
"type": "color"
},
"500": {
"value": "#527CA3",
"type": "color"
},
"600": {
"value": "#44627E",
"type": "color"
},
"700": {
"value": "#35485A",
"type": "color"
},
"800": {
"value": "#25313C",
"type": "color"
},
"900": {
"value": "#181F25",
"type": "color"
}
}
}
}