#102F38 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 #102F38 works with other colors. Named schemes with #102F38 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 #102F38 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 #102F38 at work across the surfaces designers actually ship.
:root {
--color-base: #102F38;
--color-base-rgb: 16 47 56;
--color-base-oklch: oklch(28.6% 0.040 219.9);
--color-50: #F3FAFC;
--color-100: #DFF1F7;
--color-200: #BFE2ED;
--color-300: #93CBDC;
--color-400: #6BB2C7;
--color-500: #4995AC;
--color-600: #3E7384;
--color-700: #31535E;
--color-800: #23383E;
--color-900: #172326;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
gunmetal-gray: {
50: '#F3FAFC',
100: '#DFF1F7',
200: '#BFE2ED',
300: '#93CBDC',
400: '#6BB2C7',
500: '#4995AC',
600: '#3E7384',
700: '#31535E',
800: '#23383E',
900: '#172326',
},
}
$base: #102F38; $base-ink: #FFFFFF; $base-50: #F3FAFC; $base-100: #DFF1F7; $base-200: #BFE2ED; $base-300: #93CBDC; $base-400: #6BB2C7; $base-500: #4995AC; $base-600: #3E7384; $base-700: #31535E; $base-800: #23383E; $base-900: #172326; $base-hover: #0D252D; $base-subtle: #A1CCD9;
{
"color": {
"base": {
"value": "#102F38",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FAFC",
"type": "color"
},
"100": {
"value": "#DFF1F7",
"type": "color"
},
"200": {
"value": "#BFE2ED",
"type": "color"
},
"300": {
"value": "#93CBDC",
"type": "color"
},
"400": {
"value": "#6BB2C7",
"type": "color"
},
"500": {
"value": "#4995AC",
"type": "color"
},
"600": {
"value": "#3E7384",
"type": "color"
},
"700": {
"value": "#31535E",
"type": "color"
},
"800": {
"value": "#23383E",
"type": "color"
},
"900": {
"value": "#172326",
"type": "color"
}
}
}
}