#5491DB 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 #5491DB works with other colors. Named schemes with #5491DB in its natural role, and a note on why the supporting colors balance it.
Cornflower Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cornflower Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cornflower 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 Cornflower Blue.
Cornflower 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 Cornflower Blue carrying the quiet middle.
Cornflower Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
How #5491DB 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 #5491DB at work across the surfaces designers actually ship.
:root {
--color-base: #5491DB;
--color-base-rgb: 84 145 219;
--color-base-oklch: oklch(64.9% 0.128 254.3);
--color-50: #F2F7FD;
--color-100: #DDE9F9;
--color-200: #BCD4F1;
--color-300: #8EB3E2;
--color-400: #6394CF;
--color-500: #4175B4;
--color-600: #385D89;
--color-700: #2D4562;
--color-800: #212F40;
--color-900: #161E27;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F2F7FD',
100: '#DDE9F9',
200: '#BCD4F1',
300: '#8EB3E2',
400: '#6394CF',
500: '#4175B4',
600: '#385D89',
700: '#2D4562',
800: '#212F40',
900: '#161E27',
},
}
$base: #5491DB; $base-ink: #141310; $base-50: #F2F7FD; $base-100: #DDE9F9; $base-200: #BCD4F1; $base-300: #8EB3E2; $base-400: #6394CF; $base-500: #4175B4; $base-600: #385D89; $base-700: #2D4562; $base-800: #212F40; $base-900: #161E27; $base-hover: #2A71C7; $base-subtle: #D0DEEF;
{
"color": {
"base": {
"value": "#5491DB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F7FD",
"type": "color"
},
"100": {
"value": "#DDE9F9",
"type": "color"
},
"200": {
"value": "#BCD4F1",
"type": "color"
},
"300": {
"value": "#8EB3E2",
"type": "color"
},
"400": {
"value": "#6394CF",
"type": "color"
},
"500": {
"value": "#4175B4",
"type": "color"
},
"600": {
"value": "#385D89",
"type": "color"
},
"700": {
"value": "#2D4562",
"type": "color"
},
"800": {
"value": "#212F40",
"type": "color"
},
"900": {
"value": "#161E27",
"type": "color"
}
}
}
}