#2B414E 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 #2B414E works with other colors. Named schemes with #2B414E in its natural role, and a note on why the supporting colors balance it.
Charcoal opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Charcoal keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Charcoal is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Charcoal.
Charcoal plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Charcoal 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 Charcoal carrying the quiet middle.
How #2B414E 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 #2B414E at work across the surfaces designers actually ship.
:root {
--color-base: #2B414E;
--color-base-rgb: 43 65 78;
--color-base-oklch: oklch(36.3% 0.036 235.0);
--color-50: #F5F8FA;
--color-100: #E4ECF1;
--color-200: #CAD9E2;
--color-300: #A5BDCA;
--color-400: #819FB1;
--color-500: #618194;
--color-600: #4F6673;
--color-700: #3C4B53;
--color-800: #293237;
--color-900: #1B2023;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
charcoal: {
50: '#F5F8FA',
100: '#E4ECF1',
200: '#CAD9E2',
300: '#A5BDCA',
400: '#819FB1',
500: '#618194',
600: '#4F6673',
700: '#3C4B53',
800: '#293237',
900: '#1B2023',
},
}
$base: #2B414E; $base-ink: #FFFFFF; $base-50: #F5F8FA; $base-100: #E4ECF1; $base-200: #CAD9E2; $base-300: #A5BDCA; $base-400: #819FB1; $base-500: #618194; $base-600: #4F6673; $base-700: #3C4B53; $base-800: #293237; $base-900: #1B2023; $base-hover: #23353F; $base-subtle: #B8C8D2;
{
"color": {
"base": {
"value": "#2B414E",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F8FA",
"type": "color"
},
"100": {
"value": "#E4ECF1",
"type": "color"
},
"200": {
"value": "#CAD9E2",
"type": "color"
},
"300": {
"value": "#A5BDCA",
"type": "color"
},
"400": {
"value": "#819FB1",
"type": "color"
},
"500": {
"value": "#618194",
"type": "color"
},
"600": {
"value": "#4F6673",
"type": "color"
},
"700": {
"value": "#3C4B53",
"type": "color"
},
"800": {
"value": "#293237",
"type": "color"
},
"900": {
"value": "#1B2023",
"type": "color"
}
}
}
}