#0F2D39 is a muted, cool blue. 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 #0F2D39 works with other colors. Named schemes with #0F2D39 in its natural role, and a note on why the supporting colors balance it.
Gunmetal Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Gunmetal Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Gunmetal Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Gunmetal Gray.
Gunmetal Gray plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Gunmetal Gray 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 Gunmetal Gray carrying the quiet middle.
How #0F2D39 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 #0F2D39 at work across the surfaces designers actually ship.
:root {
--color-base: #0F2D39;
--color-base-rgb: 15 45 57;
--color-base-oklch: oklch(28.1% 0.042 227.4);
--color-50: #F2F9FC;
--color-100: #DEF0F7;
--color-200: #BFE0EE;
--color-300: #92C8DD;
--color-400: #69AEC9;
--color-500: #4791AD;
--color-600: #3D7185;
--color-700: #30525F;
--color-800: #23363E;
--color-900: #172226;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
gunmetal-gray: {
50: '#F2F9FC',
100: '#DEF0F7',
200: '#BFE0EE',
300: '#92C8DD',
400: '#69AEC9',
500: '#4791AD',
600: '#3D7185',
700: '#30525F',
800: '#23363E',
900: '#172226',
},
}
$base: #0F2D39; $base-ink: #FFFFFF; $base-50: #F2F9FC; $base-100: #DEF0F7; $base-200: #BFE0EE; $base-300: #92C8DD; $base-400: #69AEC9; $base-500: #4791AD; $base-600: #3D7185; $base-700: #30525F; $base-800: #23363E; $base-900: #172226; $base-hover: #0C242D; $base-subtle: #A0CADA;
{
"color": {
"base": {
"value": "#0F2D39",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F9FC",
"type": "color"
},
"100": {
"value": "#DEF0F7",
"type": "color"
},
"200": {
"value": "#BFE0EE",
"type": "color"
},
"300": {
"value": "#92C8DD",
"type": "color"
},
"400": {
"value": "#69AEC9",
"type": "color"
},
"500": {
"value": "#4791AD",
"type": "color"
},
"600": {
"value": "#3D7185",
"type": "color"
},
"700": {
"value": "#30525F",
"type": "color"
},
"800": {
"value": "#23363E",
"type": "color"
},
"900": {
"value": "#172226",
"type": "color"
}
}
}
}