#279EF2 is a mid-toned, cool blue. 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 #279EF2 works with other colors. Named schemes with #279EF2 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 #279EF2 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 #279EF2 at work across the surfaces designers actually ship.
:root {
--color-base: #279EF2;
--color-base-rgb: 39 158 242;
--color-base-oklch: oklch(67.7% 0.159 245.6);
--color-50: #F0F9FE;
--color-100: #D8EEFD;
--color-200: #B2DCFA;
--color-300: #7EC1F1;
--color-400: #4FA5E3;
--color-500: #2C87C9;
--color-600: #2A6A98;
--color-700: #234D6B;
--color-800: #1B3446;
--color-900: #13212B;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F0F9FE',
100: '#D8EEFD',
200: '#B2DCFA',
300: '#7EC1F1',
400: '#4FA5E3',
500: '#2C87C9',
600: '#2A6A98',
700: '#234D6B',
800: '#1B3446',
900: '#13212B',
},
}
$base: #279EF2; $base-ink: #141310; $base-50: #F0F9FE; $base-100: #D8EEFD; $base-200: #B2DCFA; $base-300: #7EC1F1; $base-400: #4FA5E3; $base-500: #2C87C9; $base-600: #2A6A98; $base-700: #234D6B; $base-800: #1B3446; $base-900: #13212B; $base-hover: #0C81D4; $base-subtle: #C5E0F4;
{
"color": {
"base": {
"value": "#279EF2",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F9FE",
"type": "color"
},
"100": {
"value": "#D8EEFD",
"type": "color"
},
"200": {
"value": "#B2DCFA",
"type": "color"
},
"300": {
"value": "#7EC1F1",
"type": "color"
},
"400": {
"value": "#4FA5E3",
"type": "color"
},
"500": {
"value": "#2C87C9",
"type": "color"
},
"600": {
"value": "#2A6A98",
"type": "color"
},
"700": {
"value": "#234D6B",
"type": "color"
},
"800": {
"value": "#1B3446",
"type": "color"
},
"900": {
"value": "#13212B",
"type": "color"
}
}
}
}