#113240 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 #113240 works with other colors. Named schemes with #113240 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 #113240 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 #113240 at work across the surfaces designers actually ship.
:root {
--color-base: #113240;
--color-base-rgb: 17 50 64;
--color-base-oklch: oklch(30.0% 0.046 229.0);
--color-50: #F2F9FC;
--color-100: #DEF0F7;
--color-200: #BFE0EE;
--color-300: #92C7DD;
--color-400: #69ACC9;
--color-500: #478FAD;
--color-600: #3D6F85;
--color-700: #30515F;
--color-800: #23363E;
--color-900: #172226;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
gunmetal-gray: {
50: '#F2F9FC',
100: '#DEF0F7',
200: '#BFE0EE',
300: '#92C7DD',
400: '#69ACC9',
500: '#478FAD',
600: '#3D6F85',
700: '#30515F',
800: '#23363E',
900: '#172226',
},
}
$base: #113240; $base-ink: #FFFFFF; $base-50: #F2F9FC; $base-100: #DEF0F7; $base-200: #BFE0EE; $base-300: #92C7DD; $base-400: #69ACC9; $base-500: #478FAD; $base-600: #3D6F85; $base-700: #30515F; $base-800: #23363E; $base-900: #172226; $base-hover: #0E2834; $base-subtle: #A2CADB;
{
"color": {
"base": {
"value": "#113240",
"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": "#92C7DD",
"type": "color"
},
"400": {
"value": "#69ACC9",
"type": "color"
},
"500": {
"value": "#478FAD",
"type": "color"
},
"600": {
"value": "#3D6F85",
"type": "color"
},
"700": {
"value": "#30515F",
"type": "color"
},
"800": {
"value": "#23363E",
"type": "color"
},
"900": {
"value": "#172226",
"type": "color"
}
}
}
}