#579BDF 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 #579BDF works with other colors. Named schemes with #579BDF in its natural role, and a note on why the supporting colors balance it.
Carolina Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Carolina Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Carolina 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 Carolina Blue.
Carolina 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 Carolina Blue carrying the quiet middle.
Carolina 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 #579BDF 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 #579BDF at work across the surfaces designers actually ship.
:root {
--color-base: #579BDF;
--color-base-rgb: 87 155 223;
--color-base-oklch: oklch(67.4% 0.123 250.1);
--color-50: #F2F7FD;
--color-100: #DCEBF9;
--color-200: #BBD6F2;
--color-300: #8CB8E3;
--color-400: #6199D1;
--color-500: #3F7AB6;
--color-600: #37618B;
--color-700: #2C4763;
--color-800: #203041;
--color-900: #151F28;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F2F7FD',
100: '#DCEBF9',
200: '#BBD6F2',
300: '#8CB8E3',
400: '#6199D1',
500: '#3F7AB6',
600: '#37618B',
700: '#2C4763',
800: '#203041',
900: '#151F28',
},
}
$base: #579BDF; $base-ink: #141310; $base-50: #F2F7FD; $base-100: #DCEBF9; $base-200: #BBD6F2; $base-300: #8CB8E3; $base-400: #6199D1; $base-500: #3F7AB6; $base-600: #37618B; $base-700: #2C4763; $base-800: #203041; $base-900: #151F28; $base-hover: #287CD1; $base-subtle: #D2E1F1;
{
"color": {
"base": {
"value": "#579BDF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F7FD",
"type": "color"
},
"100": {
"value": "#DCEBF9",
"type": "color"
},
"200": {
"value": "#BBD6F2",
"type": "color"
},
"300": {
"value": "#8CB8E3",
"type": "color"
},
"400": {
"value": "#6199D1",
"type": "color"
},
"500": {
"value": "#3F7AB6",
"type": "color"
},
"600": {
"value": "#37618B",
"type": "color"
},
"700": {
"value": "#2C4763",
"type": "color"
},
"800": {
"value": "#203041",
"type": "color"
},
"900": {
"value": "#151F28",
"type": "color"
}
}
}
}