#549CA3 is a mid-toned, cool cyan-blue. 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 #549CA3 works with other colors. Named schemes with #549CA3 in its natural role, and a note on why the supporting colors balance it.
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 opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cadet Blue sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.
Cadet 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 Cadet Blue.
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 #549CA3 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 #549CA3 at work across the surfaces designers actually ship.
:root {
--color-base: #549CA3;
--color-base-rgb: 84 156 163;
--color-base-oklch: oklch(64.9% 0.073 203.7);
--color-50: #F5FAFA;
--color-100: #E4F0F2;
--color-200: #C9E1E3;
--color-300: #A3C9CC;
--color-400: #7FAFB3;
--color-500: #5E9297;
--color-600: #4D7175;
--color-700: #3A5254;
--color-800: #293738;
--color-900: #1A2223;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cadet-blue: {
50: '#F5FAFA',
100: '#E4F0F2',
200: '#C9E1E3',
300: '#A3C9CC',
400: '#7FAFB3',
500: '#5E9297',
600: '#4D7175',
700: '#3A5254',
800: '#293738',
900: '#1A2223',
},
}
$base: #549CA3; $base-ink: #141310; $base-50: #F5FAFA; $base-100: #E4F0F2; $base-200: #C9E1E3; $base-300: #A3C9CC; $base-400: #7FAFB3; $base-500: #5E9297; $base-600: #4D7175; $base-700: #3A5254; $base-800: #293738; $base-900: #1A2223; $base-hover: #437C81; $base-subtle: #CEDFE1;
{
"color": {
"base": {
"value": "#549CA3",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5FAFA",
"type": "color"
},
"100": {
"value": "#E4F0F2",
"type": "color"
},
"200": {
"value": "#C9E1E3",
"type": "color"
},
"300": {
"value": "#A3C9CC",
"type": "color"
},
"400": {
"value": "#7FAFB3",
"type": "color"
},
"500": {
"value": "#5E9297",
"type": "color"
},
"600": {
"value": "#4D7175",
"type": "color"
},
"700": {
"value": "#3A5254",
"type": "color"
},
"800": {
"value": "#293738",
"type": "color"
},
"900": {
"value": "#1A2223",
"type": "color"
}
}
}
}