#375167 is a muted, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #375167 works with other colors. Named schemes with #375167 in its natural role, and a note on why the supporting colors balance it.
Dark Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Dark Slate 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 Dark Slate Gray.
Dark Slate 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.
Dark Slate 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 Dark Slate Gray carrying the quiet middle.
How #375167 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 #375167 at work across the surfaces designers actually ship.
:root {
--color-base: #375167;
--color-base-rgb: 55 81 103;
--color-base-oklch: oklch(42.4% 0.048 244.8);
--color-50: #F5F8FA;
--color-100: #E4EBF1;
--color-200: #CAD7E2;
--color-300: #A4B9CB;
--color-400: #809BB2;
--color-500: #607C95;
--color-600: #4E6274;
--color-700: #3B4854;
--color-800: #293138;
--color-900: #1B1F23;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F5F8FA',
100: '#E4EBF1',
200: '#CAD7E2',
300: '#A4B9CB',
400: '#809BB2',
500: '#607C95',
600: '#4E6274',
700: '#3B4854',
800: '#293138',
900: '#1B1F23',
},
}
$base: #375167; $base-ink: #FFFFFF; $base-50: #F5F8FA; $base-100: #E4EBF1; $base-200: #CAD7E2; $base-300: #A4B9CB; $base-400: #809BB2; $base-500: #607C95; $base-600: #4E6274; $base-700: #3B4854; $base-800: #293138; $base-900: #1B1F23; $base-hover: #2C4152; $base-subtle: #BECBD6;
{
"color": {
"base": {
"value": "#375167",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F8FA",
"type": "color"
},
"100": {
"value": "#E4EBF1",
"type": "color"
},
"200": {
"value": "#CAD7E2",
"type": "color"
},
"300": {
"value": "#A4B9CB",
"type": "color"
},
"400": {
"value": "#809BB2",
"type": "color"
},
"500": {
"value": "#607C95",
"type": "color"
},
"600": {
"value": "#4E6274",
"type": "color"
},
"700": {
"value": "#3B4854",
"type": "color"
},
"800": {
"value": "#293138",
"type": "color"
},
"900": {
"value": "#1B1F23",
"type": "color"
}
}
}
}