#508CEE is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered, bold and ownable. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #508CEE works with other colors. Named schemes with #508CEE 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 #508CEE 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 #508CEE at work across the surfaces designers actually ship.
:root {
--color-base: #508CEE;
--color-base-rgb: 80 140 238;
--color-base-oklch: oklch(64.7% 0.160 259.7);
--color-50: #F0F6FE;
--color-100: #D9E6FC;
--color-200: #B5CEF8;
--color-300: #83ABED;
--color-400: #5589DD;
--color-500: #326AC3;
--color-600: #2E5594;
--color-700: #264069;
--color-800: #1D2C44;
--color-900: #141C2A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F0F6FE',
100: '#D9E6FC',
200: '#B5CEF8',
300: '#83ABED',
400: '#5589DD',
500: '#326AC3',
600: '#2E5594',
700: '#264069',
800: '#1D2C44',
900: '#141C2A',
},
}
$base: #508CEE; $base-ink: #141310; $base-50: #F0F6FE; $base-100: #D9E6FC; $base-200: #B5CEF8; $base-300: #83ABED; $base-400: #5589DD; $base-500: #326AC3; $base-600: #2E5594; $base-700: #264069; $base-800: #1D2C44; $base-900: #141C2A; $base-hover: #1766E6; $base-subtle: #D0DEF4;
{
"color": {
"base": {
"value": "#508CEE",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F6FE",
"type": "color"
},
"100": {
"value": "#D9E6FC",
"type": "color"
},
"200": {
"value": "#B5CEF8",
"type": "color"
},
"300": {
"value": "#83ABED",
"type": "color"
},
"400": {
"value": "#5589DD",
"type": "color"
},
"500": {
"value": "#326AC3",
"type": "color"
},
"600": {
"value": "#2E5594",
"type": "color"
},
"700": {
"value": "#264069",
"type": "color"
},
"800": {
"value": "#1D2C44",
"type": "color"
},
"900": {
"value": "#141C2A",
"type": "color"
}
}
}
}