#0A495C is a mid-toned, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #0A495C works with other colors. Named schemes with #0A495C in its natural role, and a note on why the supporting colors balance it.
Charcoal opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Charcoal keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Charcoal is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Charcoal.
Charcoal plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Charcoal 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 Charcoal carrying the quiet middle.
How #0A495C 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 #0A495C at work across the surfaces designers actually ship.
:root {
--color-base: #0A495C;
--color-base-rgb: 10 73 92;
--color-base-oklch: oklch(37.8% 0.067 224.1);
--color-50: #F1FBFE;
--color-100: #D9F4FC;
--color-200: #B6E8F7;
--color-300: #84D3EB;
--color-400: #57BCDB;
--color-500: #34A0C1;
--color-600: #2F7B93;
--color-700: #275968;
--color-800: #1D3B44;
--color-900: #142429;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
charcoal: {
50: '#F1FBFE',
100: '#D9F4FC',
200: '#B6E8F7',
300: '#84D3EB',
400: '#57BCDB',
500: '#34A0C1',
600: '#2F7B93',
700: '#275968',
800: '#1D3B44',
900: '#142429',
},
}
$base: #0A495C; $base-ink: #FFFFFF; $base-50: #F1FBFE; $base-100: #D9F4FC; $base-200: #B6E8F7; $base-300: #84D3EB; $base-400: #57BCDB; $base-500: #34A0C1; $base-600: #2F7B93; $base-700: #275968; $base-800: #1D3B44; $base-900: #142429; $base-hover: #083A49; $base-subtle: #9DD6E7;
{
"color": {
"base": {
"value": "#0A495C",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FBFE",
"type": "color"
},
"100": {
"value": "#D9F4FC",
"type": "color"
},
"200": {
"value": "#B6E8F7",
"type": "color"
},
"300": {
"value": "#84D3EB",
"type": "color"
},
"400": {
"value": "#57BCDB",
"type": "color"
},
"500": {
"value": "#34A0C1",
"type": "color"
},
"600": {
"value": "#2F7B93",
"type": "color"
},
"700": {
"value": "#275968",
"type": "color"
},
"800": {
"value": "#1D3B44",
"type": "color"
},
"900": {
"value": "#142429",
"type": "color"
}
}
}
}