#0F2B4E is a deep, cool indigo. On the Color Lab it reads clean and engineered, quietly premium. It is too dark to lead as a primary accent and reproduces cleanly in print.
Not just a swatch — here's how #0F2B4E works with other colors. Named schemes with #0F2B4E in its natural role, and a note on why the supporting colors balance it.
Prussian Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Prussian Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Prussian 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 Prussian Blue.
Prussian 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.
Prussian 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 Prussian Blue carrying the quiet middle.
How #0F2B4E 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 #0F2B4E at work across the surfaces designers actually ship.
:root {
--color-base: #0F2B4E;
--color-base-rgb: 15 43 78;
--color-base-oklch: oklch(28.8% 0.073 255.5);
--color-50: #F2F7FD;
--color-100: #DCE9F9;
--color-200: #BBD3F2;
--color-300: #8CB3E3;
--color-400: #6193D1;
--color-500: #3F74B6;
--color-600: #375D8B;
--color-700: #2C4563;
--color-800: #202F41;
--color-900: #151E28;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
prussian-blue: {
50: '#F2F7FD',
100: '#DCE9F9',
200: '#BBD3F2',
300: '#8CB3E3',
400: '#6193D1',
500: '#3F74B6',
600: '#375D8B',
700: '#2C4563',
800: '#202F41',
900: '#151E28',
},
}
$base: #0F2B4E; $base-ink: #FFFFFF; $base-50: #F2F7FD; $base-100: #DCE9F9; $base-200: #BBD3F2; $base-300: #8CB3E3; $base-400: #6193D1; $base-500: #3F74B6; $base-600: #375D8B; $base-700: #2C4563; $base-800: #202F41; $base-900: #151E28; $base-hover: #0C223E; $base-subtle: #A0BDE1;
{
"color": {
"base": {
"value": "#0F2B4E",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F7FD",
"type": "color"
},
"100": {
"value": "#DCE9F9",
"type": "color"
},
"200": {
"value": "#BBD3F2",
"type": "color"
},
"300": {
"value": "#8CB3E3",
"type": "color"
},
"400": {
"value": "#6193D1",
"type": "color"
},
"500": {
"value": "#3F74B6",
"type": "color"
},
"600": {
"value": "#375D8B",
"type": "color"
},
"700": {
"value": "#2C4563",
"type": "color"
},
"800": {
"value": "#202F41",
"type": "color"
},
"900": {
"value": "#151E28",
"type": "color"
}
}
}
}