#313752 is a muted, cool violet. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #313752 works with other colors. Named schemes with #313752 in its natural role, and a note on why the supporting colors balance it.
Onyx opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Onyx keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Onyx is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Onyx.
Onyx plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Onyx 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 Onyx carrying the quiet middle.
How #313752 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 #313752 at work across the surfaces designers actually ship.
:root {
--color-base: #313752;
--color-base-rgb: 49 55 82;
--color-base-oklch: oklch(34.4% 0.048 274.0);
--color-50: #F5F6F9;
--color-100: #E5E7F0;
--color-200: #CCD0E0;
--color-300: #A7ADC8;
--color-400: #848CAE;
--color-500: #646C90;
--color-600: #515770;
--color-700: #3D4151;
--color-800: #2A2D36;
--color-900: #1B1C22;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
onyx: {
50: '#F5F6F9',
100: '#E5E7F0',
200: '#CCD0E0',
300: '#A7ADC8',
400: '#848CAE',
500: '#646C90',
600: '#515770',
700: '#3D4151',
800: '#2A2D36',
900: '#1B1C22',
},
}
$base: #313752; $base-ink: #FFFFFF; $base-50: #F5F6F9; $base-100: #E5E7F0; $base-200: #CCD0E0; $base-300: #A7ADC8; $base-400: #848CAE; $base-500: #646C90; $base-600: #515770; $base-700: #3D4151; $base-800: #2A2D36; $base-900: #1B1C22; $base-hover: #282D42; $base-subtle: #BCC0D1;
{
"color": {
"base": {
"value": "#313752",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F6F9",
"type": "color"
},
"100": {
"value": "#E5E7F0",
"type": "color"
},
"200": {
"value": "#CCD0E0",
"type": "color"
},
"300": {
"value": "#A7ADC8",
"type": "color"
},
"400": {
"value": "#848CAE",
"type": "color"
},
"500": {
"value": "#646C90",
"type": "color"
},
"600": {
"value": "#515770",
"type": "color"
},
"700": {
"value": "#3D4151",
"type": "color"
},
"800": {
"value": "#2A2D36",
"type": "color"
},
"900": {
"value": "#1B1C22",
"type": "color"
}
}
}
}