#5384BB is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #5384BB works with other colors. Named schemes with #5384BB in its natural role, and a note on why the supporting colors balance it.
Glaucous opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Glaucous is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Glaucous.
Glaucous plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Glaucous sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Glaucous 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 Glaucous carrying the quiet middle.
How #5384BB 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 #5384BB at work across the surfaces designers actually ship.
:root {
--color-base: #5384BB;
--color-base-rgb: 83 132 187;
--color-base-oklch: oklch(60.2% 0.100 252.3);
--color-50: #F4F7FB;
--color-100: #E1EAF4;
--color-200: #C5D5E8;
--color-300: #9CB6D3;
--color-400: #7597BD;
--color-500: #5578A0;
--color-600: #465F7C;
--color-700: #364659;
--color-800: #26303B;
--color-900: #191E24;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
glaucous: {
50: '#F4F7FB',
100: '#E1EAF4',
200: '#C5D5E8',
300: '#9CB6D3',
400: '#7597BD',
500: '#5578A0',
600: '#465F7C',
700: '#364659',
800: '#26303B',
900: '#191E24',
},
}
$base: #5384BB; $base-ink: #141310; $base-50: #F4F7FB; $base-100: #E1EAF4; $base-200: #C5D5E8; $base-300: #9CB6D3; $base-400: #7597BD; $base-500: #5578A0; $base-600: #465F7C; $base-700: #364659; $base-800: #26303B; $base-900: #191E24; $base-hover: #3E699B; $base-subtle: #CFDAE7;
{
"color": {
"base": {
"value": "#5384BB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F7FB",
"type": "color"
},
"100": {
"value": "#E1EAF4",
"type": "color"
},
"200": {
"value": "#C5D5E8",
"type": "color"
},
"300": {
"value": "#9CB6D3",
"type": "color"
},
"400": {
"value": "#7597BD",
"type": "color"
},
"500": {
"value": "#5578A0",
"type": "color"
},
"600": {
"value": "#465F7C",
"type": "color"
},
"700": {
"value": "#364659",
"type": "color"
},
"800": {
"value": "#26303B",
"type": "color"
},
"900": {
"value": "#191E24",
"type": "color"
}
}
}
}