#173236 is a muted, temperate cyan-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 #173236 works with other colors. Named schemes with #173236 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 #173236 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 #173236 at work across the surfaces designers actually ship.
:root {
--color-base: #173236;
--color-base-rgb: 23 50 54;
--color-base-oklch: oklch(29.8% 0.034 208.0);
--color-50: #F4FAFB;
--color-100: #E2F1F3;
--color-200: #C6E2E6;
--color-300: #9ECBD1;
--color-400: #78B1BA;
--color-500: #57949E;
--color-600: #48737A;
--color-700: #375358;
--color-800: #27383A;
--color-900: #192324;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
gunmetal-gray: {
50: '#F4FAFB',
100: '#E2F1F3',
200: '#C6E2E6',
300: '#9ECBD1',
400: '#78B1BA',
500: '#57949E',
600: '#48737A',
700: '#375358',
800: '#27383A',
900: '#192324',
},
}
$base: #173236; $base-ink: #FFFFFF; $base-50: #F4FAFB; $base-100: #E2F1F3; $base-200: #C6E2E6; $base-300: #9ECBD1; $base-400: #78B1BA; $base-500: #57949E; $base-600: #48737A; $base-700: #375358; $base-800: #27383A; $base-900: #192324; $base-hover: #12282B; $base-subtle: #AACCD2;
{
"color": {
"base": {
"value": "#173236",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FAFB",
"type": "color"
},
"100": {
"value": "#E2F1F3",
"type": "color"
},
"200": {
"value": "#C6E2E6",
"type": "color"
},
"300": {
"value": "#9ECBD1",
"type": "color"
},
"400": {
"value": "#78B1BA",
"type": "color"
},
"500": {
"value": "#57949E",
"type": "color"
},
"600": {
"value": "#48737A",
"type": "color"
},
"700": {
"value": "#375358",
"type": "color"
},
"800": {
"value": "#27383A",
"type": "color"
},
"900": {
"value": "#192324",
"type": "color"
}
}
}
}