#054B60 is a mid-toned, 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 #054B60 works with other colors. Named schemes with #054B60 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 #054B60 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 #054B60 at work across the surfaces designers actually ship.
:root {
--color-base: #054B60;
--color-base-rgb: 5 75 96;
--color-base-oklch: oklch(38.5% 0.071 225.2);
--color-50: #F0FBFE;
--color-100: #D8F5FD;
--color-200: #B2EAFB;
--color-300: #7ED7F2;
--color-400: #4FC1E3;
--color-500: #2BA5CA;
--color-600: #297F99;
--color-700: #235B6C;
--color-800: #1B3C46;
--color-900: #12252B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F0FBFE',
100: '#D8F5FD',
200: '#B2EAFB',
300: '#7ED7F2',
400: '#4FC1E3',
500: '#2BA5CA',
600: '#297F99',
700: '#235B6C',
800: '#1B3C46',
900: '#12252B',
},
}
$base: #054B60; $base-ink: #FFFFFF; $base-50: #F0FBFE; $base-100: #D8F5FD; $base-200: #B2EAFB; $base-300: #7ED7F2; $base-400: #4FC1E3; $base-500: #2BA5CA; $base-600: #297F99; $base-700: #235B6C; $base-800: #1B3C46; $base-900: #12252B; $base-hover: #043C4E; $base-subtle: #98D8EC;
{
"color": {
"base": {
"value": "#054B60",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FBFE",
"type": "color"
},
"100": {
"value": "#D8F5FD",
"type": "color"
},
"200": {
"value": "#B2EAFB",
"type": "color"
},
"300": {
"value": "#7ED7F2",
"type": "color"
},
"400": {
"value": "#4FC1E3",
"type": "color"
},
"500": {
"value": "#2BA5CA",
"type": "color"
},
"600": {
"value": "#297F99",
"type": "color"
},
"700": {
"value": "#235B6C",
"type": "color"
},
"800": {
"value": "#1B3C46",
"type": "color"
},
"900": {
"value": "#12252B",
"type": "color"
}
}
}
}