#104154 is a deep, 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 #104154 works with other colors. Named schemes with #104154 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 #104154 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 #104154 at work across the surfaces designers actually ship.
:root {
--color-base: #104154;
--color-base-rgb: 16 65 84;
--color-base-oklch: oklch(35.3% 0.060 228.5);
--color-50: #F2FAFD;
--color-100: #DCF1F9;
--color-200: #BBE2F2;
--color-300: #8CCBE3;
--color-400: #61B1D1;
--color-500: #3F94B6;
--color-600: #37738B;
--color-700: #2C5363;
--color-800: #203841;
--color-900: #152328;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
charcoal: {
50: '#F2FAFD',
100: '#DCF1F9',
200: '#BBE2F2',
300: '#8CCBE3',
400: '#61B1D1',
500: '#3F94B6',
600: '#37738B',
700: '#2C5363',
800: '#203841',
900: '#152328',
},
}
$base: #104154; $base-ink: #FFFFFF; $base-50: #F2FAFD; $base-100: #DCF1F9; $base-200: #BBE2F2; $base-300: #8CCBE3; $base-400: #61B1D1; $base-500: #3F94B6; $base-600: #37738B; $base-700: #2C5363; $base-800: #203841; $base-900: #152328; $base-hover: #0D3545; $base-subtle: #A2D0E1;
{
"color": {
"base": {
"value": "#104154",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FAFD",
"type": "color"
},
"100": {
"value": "#DCF1F9",
"type": "color"
},
"200": {
"value": "#BBE2F2",
"type": "color"
},
"300": {
"value": "#8CCBE3",
"type": "color"
},
"400": {
"value": "#61B1D1",
"type": "color"
},
"500": {
"value": "#3F94B6",
"type": "color"
},
"600": {
"value": "#37738B",
"type": "color"
},
"700": {
"value": "#2C5363",
"type": "color"
},
"800": {
"value": "#203841",
"type": "color"
},
"900": {
"value": "#152328",
"type": "color"
}
}
}
}