#528FE0 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 #528FE0 works with other colors. Named schemes with #528FE0 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 #528FE0 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 #528FE0 at work across the surfaces designers actually ship.
:root {
--color-base: #528FE0;
--color-base-rgb: 82 143 224;
--color-base-oklch: oklch(64.6% 0.138 256.1);
--color-50: #F1F7FD;
--color-100: #DBE9FA;
--color-200: #BAD2F3;
--color-300: #8AB2E5;
--color-400: #5F91D3;
--color-500: #3D72B8;
--color-600: #355B8C;
--color-700: #2B4464;
--color-800: #202E41;
--color-900: #151D28;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F1F7FD',
100: '#DBE9FA',
200: '#BAD2F3',
300: '#8AB2E5',
400: '#5F91D3',
500: '#3D72B8',
600: '#355B8C',
700: '#2B4464',
800: '#202E41',
900: '#151D28',
},
}
$base: #528FE0; $base-ink: #141310; $base-50: #F1F7FD; $base-100: #DBE9FA; $base-200: #BAD2F3; $base-300: #8AB2E5; $base-400: #5F91D3; $base-500: #3D72B8; $base-600: #355B8C; $base-700: #2B4464; $base-800: #202E41; $base-900: #151D28; $base-hover: #256FD0; $base-subtle: #D0DEF1;
{
"color": {
"base": {
"value": "#528FE0",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F7FD",
"type": "color"
},
"100": {
"value": "#DBE9FA",
"type": "color"
},
"200": {
"value": "#BAD2F3",
"type": "color"
},
"300": {
"value": "#8AB2E5",
"type": "color"
},
"400": {
"value": "#5F91D3",
"type": "color"
},
"500": {
"value": "#3D72B8",
"type": "color"
},
"600": {
"value": "#355B8C",
"type": "color"
},
"700": {
"value": "#2B4464",
"type": "color"
},
"800": {
"value": "#202E41",
"type": "color"
},
"900": {
"value": "#151D28",
"type": "color"
}
}
}
}