#0B554B is a mid-toned, cool cyan. On the Color Lab it reads quietly premium, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #0B554B works with other colors. Named schemes with #0B554B in its natural role, and a note on why the supporting colors balance it.
Brunswick Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Brunswick Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Brunswick Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Brunswick Green 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.
Brunswick Green 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 Brunswick Green carrying the quiet middle.
How #0B554B 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 #0B554B at work across the surfaces designers actually ship.
:root {
--color-base: #0B554B;
--color-base-rgb: 11 85 75;
--color-base-oklch: oklch(40.5% 0.069 180.9);
--color-50: #F1FEFC;
--color-100: #DAFBF7;
--color-200: #B7F5ED;
--color-300: #86E9DC;
--color-400: #59D9C8;
--color-500: #37BEAC;
--color-600: #319184;
--color-700: #28665E;
--color-800: #1E433E;
--color-900: #142926;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
brunswick-green: {
50: '#F1FEFC',
100: '#DAFBF7',
200: '#B7F5ED',
300: '#86E9DC',
400: '#59D9C8',
500: '#37BEAC',
600: '#319184',
700: '#28665E',
800: '#1E433E',
900: '#142926',
},
}
$base: #0B554B; $base-ink: #FFFFFF; $base-50: #F1FEFC; $base-100: #DAFBF7; $base-200: #B7F5ED; $base-300: #86E9DC; $base-400: #59D9C8; $base-500: #37BEAC; $base-600: #319184; $base-700: #28665E; $base-800: #1E433E; $base-900: #142926; $base-hover: #09453D; $base-subtle: #9DE5DC;
{
"color": {
"base": {
"value": "#0B554B",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEFC",
"type": "color"
},
"100": {
"value": "#DAFBF7",
"type": "color"
},
"200": {
"value": "#B7F5ED",
"type": "color"
},
"300": {
"value": "#86E9DC",
"type": "color"
},
"400": {
"value": "#59D9C8",
"type": "color"
},
"500": {
"value": "#37BEAC",
"type": "color"
},
"600": {
"value": "#319184",
"type": "color"
},
"700": {
"value": "#28665E",
"type": "color"
},
"800": {
"value": "#1E433E",
"type": "color"
},
"900": {
"value": "#142926",
"type": "color"
}
}
}
}