#4E81CA 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 sits well as a supporting tone.
Not just a swatch — here's how #4E81CA works with other colors. Named schemes with #4E81CA 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 #4E81CA 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 #4E81CA at work across the surfaces designers actually ship.
:root {
--color-base: #4E81CA;
--color-base-rgb: 78 129 202;
--color-base-oklch: oklch(60.1% 0.125 257.5);
--color-50: #F3F7FC;
--color-100: #DFE9F6;
--color-200: #C0D3EC;
--color-300: #95B2DA;
--color-400: #6C92C6;
--color-500: #4B72AA;
--color-600: #3F5B83;
--color-700: #32445D;
--color-800: #232E3D;
--color-900: #171D26;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
glaucous: {
50: '#F3F7FC',
100: '#DFE9F6',
200: '#C0D3EC',
300: '#95B2DA',
400: '#6C92C6',
500: '#4B72AA',
600: '#3F5B83',
700: '#32445D',
800: '#232E3D',
900: '#171D26',
},
}
$base: #4E81CA; $base-ink: #141310; $base-50: #F3F7FC; $base-100: #DFE9F6; $base-200: #C0D3EC; $base-300: #95B2DA; $base-400: #6C92C6; $base-500: #4B72AA; $base-600: #3F5B83; $base-700: #32445D; $base-800: #232E3D; $base-900: #171D26; $base-hover: #3466AD; $base-subtle: #CEDAEB;
{
"color": {
"base": {
"value": "#4E81CA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F7FC",
"type": "color"
},
"100": {
"value": "#DFE9F6",
"type": "color"
},
"200": {
"value": "#C0D3EC",
"type": "color"
},
"300": {
"value": "#95B2DA",
"type": "color"
},
"400": {
"value": "#6C92C6",
"type": "color"
},
"500": {
"value": "#4B72AA",
"type": "color"
},
"600": {
"value": "#3F5B83",
"type": "color"
},
"700": {
"value": "#32445D",
"type": "color"
},
"800": {
"value": "#232E3D",
"type": "color"
},
"900": {
"value": "#171D26",
"type": "color"
}
}
}
}