#5B9289 is a mid-toned, cool cyan. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #5B9289 works with other colors. Named schemes with #5B9289 in its natural role, and a note on why the supporting colors balance it.
Cadet Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cadet Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cadet Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Cadet 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.
Cadet 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 Cadet Blue carrying the quiet middle.
How #5B9289 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 #5B9289 at work across the surfaces designers actually ship.
:root {
--color-base: #5B9289;
--color-base-rgb: 91 146 137;
--color-base-oklch: oklch(61.9% 0.060 182.8);
--color-50: #F5F9F9;
--color-100: #E6F0EE;
--color-200: #CDE0DC;
--color-300: #A9C6C1;
--color-400: #86ACA6;
--color-500: #668F88;
--color-600: #536F6A;
--color-700: #3E514E;
--color-800: #2B3634;
--color-900: #1B2221;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cadet-blue: {
50: '#F5F9F9',
100: '#E6F0EE',
200: '#CDE0DC',
300: '#A9C6C1',
400: '#86ACA6',
500: '#668F88',
600: '#536F6A',
700: '#3E514E',
800: '#2B3634',
900: '#1B2221',
},
}
$base: #5B9289; $base-ink: #141310; $base-50: #F5F9F9; $base-100: #E6F0EE; $base-200: #CDE0DC; $base-300: #A9C6C1; $base-400: #86ACA6; $base-500: #668F88; $base-600: #536F6A; $base-700: #3E514E; $base-800: #2B3634; $base-900: #1B2221; $base-hover: #48736C; $base-subtle: #CEDDDB;
{
"color": {
"base": {
"value": "#5B9289",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F9F9",
"type": "color"
},
"100": {
"value": "#E6F0EE",
"type": "color"
},
"200": {
"value": "#CDE0DC",
"type": "color"
},
"300": {
"value": "#A9C6C1",
"type": "color"
},
"400": {
"value": "#86ACA6",
"type": "color"
},
"500": {
"value": "#668F88",
"type": "color"
},
"600": {
"value": "#536F6A",
"type": "color"
},
"700": {
"value": "#3E514E",
"type": "color"
},
"800": {
"value": "#2B3634",
"type": "color"
},
"900": {
"value": "#1B2221",
"type": "color"
}
}
}
}