#044E64 is a mid-toned, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #044E64 works with other colors. Named schemes with #044E64 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 #044E64 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 #044E64 at work across the surfaces designers actually ship.
:root {
--color-base: #044E64;
--color-base-rgb: 4 78 100;
--color-base-oklch: oklch(39.5% 0.073 225.3);
--color-50: #F0FBFE;
--color-100: #D8F5FD;
--color-200: #B1EAFC;
--color-300: #7CD7F3;
--color-400: #4DC2E5;
--color-500: #29A6CB;
--color-600: #287F9A;
--color-700: #225B6D;
--color-800: #1A3C47;
--color-900: #12252B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F0FBFE',
100: '#D8F5FD',
200: '#B1EAFC',
300: '#7CD7F3',
400: '#4DC2E5',
500: '#29A6CB',
600: '#287F9A',
700: '#225B6D',
800: '#1A3C47',
900: '#12252B',
},
}
$base: #044E64; $base-ink: #FFFFFF; $base-50: #F0FBFE; $base-100: #D8F5FD; $base-200: #B1EAFC; $base-300: #7CD7F3; $base-400: #4DC2E5; $base-500: #29A6CB; $base-600: #287F9A; $base-700: #225B6D; $base-800: #1A3C47; $base-900: #12252B; $base-hover: #033D4E; $base-subtle: #97D9ED;
{
"color": {
"base": {
"value": "#044E64",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FBFE",
"type": "color"
},
"100": {
"value": "#D8F5FD",
"type": "color"
},
"200": {
"value": "#B1EAFC",
"type": "color"
},
"300": {
"value": "#7CD7F3",
"type": "color"
},
"400": {
"value": "#4DC2E5",
"type": "color"
},
"500": {
"value": "#29A6CB",
"type": "color"
},
"600": {
"value": "#287F9A",
"type": "color"
},
"700": {
"value": "#225B6D",
"type": "color"
},
"800": {
"value": "#1A3C47",
"type": "color"
},
"900": {
"value": "#12252B",
"type": "color"
}
}
}
}