#659EA2 is a mid-toned, cool cyan-blue. On the Color Lab it reads clean and engineered. It reproduces cleanly in print.
Not just a swatch — here's how #659EA2 works with other colors. Named schemes with #659EA2 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 #659EA2 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 #659EA2 at work across the surfaces designers actually ship.
:root {
--color-base: #659EA2;
--color-base-rgb: 101 158 162;
--color-base-oklch: oklch(66.1% 0.060 201.5);
--color-50: #F5F9F9;
--color-100: #E5EFF0;
--color-200: #CCDFE0;
--color-300: #A7C6C8;
--color-400: #84ABAE;
--color-500: #648D90;
--color-600: #516E70;
--color-700: #3D5051;
--color-800: #2A3636;
--color-900: #1B2222;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cadet-blue: {
50: '#F5F9F9',
100: '#E5EFF0',
200: '#CCDFE0',
300: '#A7C6C8',
400: '#84ABAE',
500: '#648D90',
600: '#516E70',
700: '#3D5051',
800: '#2A3636',
900: '#1B2222',
},
}
$base: #659EA2; $base-ink: #141310; $base-50: #F5F9F9; $base-100: #E5EFF0; $base-200: #CCDFE0; $base-300: #A7C6C8; $base-400: #84ABAE; $base-500: #648D90; $base-600: #516E70; $base-700: #3D5051; $base-800: #2A3636; $base-900: #1B2222; $base-hover: #508185; $base-subtle: #D3E0E1;
{
"color": {
"base": {
"value": "#659EA2",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F9F9",
"type": "color"
},
"100": {
"value": "#E5EFF0",
"type": "color"
},
"200": {
"value": "#CCDFE0",
"type": "color"
},
"300": {
"value": "#A7C6C8",
"type": "color"
},
"400": {
"value": "#84ABAE",
"type": "color"
},
"500": {
"value": "#648D90",
"type": "color"
},
"600": {
"value": "#516E70",
"type": "color"
},
"700": {
"value": "#3D5051",
"type": "color"
},
"800": {
"value": "#2A3636",
"type": "color"
},
"900": {
"value": "#1B2222",
"type": "color"
}
}
}
}