#3EA3BC is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #3EA3BC works with other colors. Named schemes with #3EA3BC 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 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.
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.
How #3EA3BC 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 #3EA3BC at work across the surfaces designers actually ship.
:root {
--color-base: #3EA3BC;
--color-base-rgb: 62 163 188;
--color-base-oklch: oklch(66.7% 0.099 217.3);
--color-50: #F3FAFC;
--color-100: #E0F1F5;
--color-200: #C2E2EB;
--color-300: #97CBD8;
--color-400: #70B2C2;
--color-500: #4E95A6;
--color-600: #427480;
--color-700: #33545C;
--color-800: #24383C;
--color-900: #182325;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cadet-blue: {
50: '#F3FAFC',
100: '#E0F1F5',
200: '#C2E2EB',
300: '#97CBD8',
400: '#70B2C2',
500: '#4E95A6',
600: '#427480',
700: '#33545C',
800: '#24383C',
900: '#182325',
},
}
$base: #3EA3BC; $base-ink: #141310; $base-50: #F3FAFC; $base-100: #E0F1F5; $base-200: #C2E2EB; $base-300: #97CBD8; $base-400: #70B2C2; $base-500: #4E95A6; $base-600: #427480; $base-700: #33545C; $base-800: #24383C; $base-900: #182325; $base-hover: #328296; $base-subtle: #C9E1E7;
{
"color": {
"base": {
"value": "#3EA3BC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FAFC",
"type": "color"
},
"100": {
"value": "#E0F1F5",
"type": "color"
},
"200": {
"value": "#C2E2EB",
"type": "color"
},
"300": {
"value": "#97CBD8",
"type": "color"
},
"400": {
"value": "#70B2C2",
"type": "color"
},
"500": {
"value": "#4E95A6",
"type": "color"
},
"600": {
"value": "#427480",
"type": "color"
},
"700": {
"value": "#33545C",
"type": "color"
},
"800": {
"value": "#24383C",
"type": "color"
},
"900": {
"value": "#182325",
"type": "color"
}
}
}
}