#2E3B44 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 #2E3B44 works with other colors. Named schemes with #2E3B44 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 #2E3B44 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 #2E3B44 at work across the surfaces designers actually ship.
:root {
--color-base: #2E3B44;
--color-base-rgb: 46 59 68;
--color-base-oklch: oklch(34.4% 0.023 238.6);
--color-50: #F6F8F9;
--color-100: #E7EBEF;
--color-200: #CED7DE;
--color-300: #ABBAC4;
--color-400: #899CA9;
--color-500: #6A7D8B;
--color-600: #55636D;
--color-700: #40494F;
--color-800: #2C3135;
--color-900: #1C1F21;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
onyx: {
50: '#F6F8F9',
100: '#E7EBEF',
200: '#CED7DE',
300: '#ABBAC4',
400: '#899CA9',
500: '#6A7D8B',
600: '#55636D',
700: '#40494F',
800: '#2C3135',
900: '#1C1F21',
},
}
$base: #2E3B44; $base-ink: #FFFFFF; $base-50: #F6F8F9; $base-100: #E7EBEF; $base-200: #CED7DE; $base-300: #ABBAC4; $base-400: #899CA9; $base-500: #6A7D8B; $base-600: #55636D; $base-700: #40494F; $base-800: #2C3135; $base-900: #1C1F21; $base-hover: #242E35; $base-subtle: #BBC5CC;
{
"color": {
"base": {
"value": "#2E3B44",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F6F8F9",
"type": "color"
},
"100": {
"value": "#E7EBEF",
"type": "color"
},
"200": {
"value": "#CED7DE",
"type": "color"
},
"300": {
"value": "#ABBAC4",
"type": "color"
},
"400": {
"value": "#899CA9",
"type": "color"
},
"500": {
"value": "#6A7D8B",
"type": "color"
},
"600": {
"value": "#55636D",
"type": "color"
},
"700": {
"value": "#40494F",
"type": "color"
},
"800": {
"value": "#2C3135",
"type": "color"
},
"900": {
"value": "#1C1F21",
"type": "color"
}
}
}
}