#334D52 is a muted, temperate blue. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #334D52 works with other colors. Named schemes with #334D52 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 #334D52 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 #334D52 at work across the surfaces designers actually ship.
:root {
--color-base: #334D52;
--color-base-rgb: 51 77 82;
--color-base-oklch: oklch(40.1% 0.033 210.9);
--color-50: #F5F9F9;
--color-100: #E6EEF0;
--color-200: #CDDCE0;
--color-300: #A9C1C6;
--color-400: #86A6AC;
--color-500: #66888F;
--color-600: #536A6F;
--color-700: #3E4E51;
--color-800: #2B3436;
--color-900: #1B2122;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F5F9F9',
100: '#E6EEF0',
200: '#CDDCE0',
300: '#A9C1C6',
400: '#86A6AC',
500: '#66888F',
600: '#536A6F',
700: '#3E4E51',
800: '#2B3436',
900: '#1B2122',
},
}
$base: #334D52; $base-ink: #FFFFFF; $base-50: #F5F9F9; $base-100: #E6EEF0; $base-200: #CDDCE0; $base-300: #A9C1C6; $base-400: #86A6AC; $base-500: #66888F; $base-600: #536A6F; $base-700: #3E4E51; $base-800: #2B3436; $base-900: #1B2122; $base-hover: #293D41; $base-subtle: #BCCDD0;
{
"color": {
"base": {
"value": "#334D52",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F9F9",
"type": "color"
},
"100": {
"value": "#E6EEF0",
"type": "color"
},
"200": {
"value": "#CDDCE0",
"type": "color"
},
"300": {
"value": "#A9C1C6",
"type": "color"
},
"400": {
"value": "#86A6AC",
"type": "color"
},
"500": {
"value": "#66888F",
"type": "color"
},
"600": {
"value": "#536A6F",
"type": "color"
},
"700": {
"value": "#3E4E51",
"type": "color"
},
"800": {
"value": "#2B3436",
"type": "color"
},
"900": {
"value": "#1B2122",
"type": "color"
}
}
}
}