#579FFC 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 #579FFC works with other colors. Named schemes with #579FFC 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 #579FFC 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 #579FFC at work across the surfaces designers actually ship.
:root {
--color-base: #579FFC;
--color-base-rgb: 87 159 252;
--color-base-oklch: oklch(69.8% 0.155 255.7);
--color-50: #F0F6FE;
--color-100: #D8E8FD;
--color-200: #B1D1FC;
--color-300: #7AAFF6;
--color-400: #4A8EE8;
--color-500: #266FCF;
--color-600: #25599D;
--color-700: #21426E;
--color-800: #192D48;
--color-900: #121D2C;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F0F6FE',
100: '#D8E8FD',
200: '#B1D1FC',
300: '#7AAFF6',
400: '#4A8EE8',
500: '#266FCF',
600: '#25599D',
700: '#21426E',
800: '#192D48',
900: '#121D2C',
},
}
$base: #579FFC; $base-ink: #141310; $base-50: #F0F6FE; $base-100: #D8E8FD; $base-200: #B1D1FC; $base-300: #7AAFF6; $base-400: #4A8EE8; $base-500: #266FCF; $base-600: #25599D; $base-700: #21426E; $base-800: #192D48; $base-900: #121D2C; $base-hover: #1377FA; $base-subtle: #D2E2F8;
{
"color": {
"base": {
"value": "#579FFC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F6FE",
"type": "color"
},
"100": {
"value": "#D8E8FD",
"type": "color"
},
"200": {
"value": "#B1D1FC",
"type": "color"
},
"300": {
"value": "#7AAFF6",
"type": "color"
},
"400": {
"value": "#4A8EE8",
"type": "color"
},
"500": {
"value": "#266FCF",
"type": "color"
},
"600": {
"value": "#25599D",
"type": "color"
},
"700": {
"value": "#21426E",
"type": "color"
},
"800": {
"value": "#192D48",
"type": "color"
},
"900": {
"value": "#121D2C",
"type": "color"
}
}
}
}