#4E88AA is a mid-toned, cool blue. On the Color Lab it reads clean and engineered, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #4E88AA works with other colors. Named schemes with #4E88AA in its natural role, and a note on why the supporting colors balance it.
Air Force Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Air Force Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Air Force Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Air Force Blue.
Air Force Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Air Force Blue 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 Air Force Blue carrying the quiet middle.
How #4E88AA 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 #4E88AA at work across the surfaces designers actually ship.
:root {
--color-base: #4E88AA;
--color-base-rgb: 78 136 170;
--color-base-oklch: oklch(60.1% 0.080 235.9);
--color-50: #F4F8FA;
--color-100: #E3EDF3;
--color-200: #C7DAE5;
--color-300: #A0BECF;
--color-400: #7AA1B8;
--color-500: #5A839B;
--color-600: #4A6778;
--color-700: #384B56;
--color-800: #283339;
--color-900: #1A2024;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
air-force-blue: {
50: '#F4F8FA',
100: '#E3EDF3',
200: '#C7DAE5',
300: '#A0BECF',
400: '#7AA1B8',
500: '#5A839B',
600: '#4A6778',
700: '#384B56',
800: '#283339',
900: '#1A2024',
},
}
$base: #4E88AA; $base-ink: #141310; $base-50: #F4F8FA; $base-100: #E3EDF3; $base-200: #C7DAE5; $base-300: #A0BECF; $base-400: #7AA1B8; $base-500: #5A839B; $base-600: #4A6778; $base-700: #384B56; $base-800: #283339; $base-900: #1A2024; $base-hover: #3F6E89; $base-subtle: #CDDBE3;
{
"color": {
"base": {
"value": "#4E88AA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F8FA",
"type": "color"
},
"100": {
"value": "#E3EDF3",
"type": "color"
},
"200": {
"value": "#C7DAE5",
"type": "color"
},
"300": {
"value": "#A0BECF",
"type": "color"
},
"400": {
"value": "#7AA1B8",
"type": "color"
},
"500": {
"value": "#5A839B",
"type": "color"
},
"600": {
"value": "#4A6778",
"type": "color"
},
"700": {
"value": "#384B56",
"type": "color"
},
"800": {
"value": "#283339",
"type": "color"
},
"900": {
"value": "#1A2024",
"type": "color"
}
}
}
}