#359CCC 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 #359CCC works with other colors. Named schemes with #359CCC 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 #359CCC 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 #359CCC at work across the surfaces designers actually ship.
:root {
--color-base: #359CCC;
--color-base-rgb: 53 156 204;
--color-base-oklch: oklch(65.5% 0.116 233.0);
--color-50: #F2F9FC;
--color-100: #DEEFF8;
--color-200: #BEDFEF;
--color-300: #91C6DE;
--color-400: #67ABCB;
--color-500: #468EAF;
--color-600: #3C6F86;
--color-700: #2F5060;
--color-800: #22363F;
--color-900: #162227;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F2F9FC',
100: '#DEEFF8',
200: '#BEDFEF',
300: '#91C6DE',
400: '#67ABCB',
500: '#468EAF',
600: '#3C6F86',
700: '#2F5060',
800: '#22363F',
900: '#162227',
},
}
$base: #359CCC; $base-ink: #141310; $base-50: #F2F9FC; $base-100: #DEEFF8; $base-200: #BEDFEF; $base-300: #91C6DE; $base-400: #67ABCB; $base-500: #468EAF; $base-600: #3C6F86; $base-700: #2F5060; $base-800: #22363F; $base-900: #162227; $base-hover: #297CA3; $base-subtle: #C7DFEA;
{
"color": {
"base": {
"value": "#359CCC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F9FC",
"type": "color"
},
"100": {
"value": "#DEEFF8",
"type": "color"
},
"200": {
"value": "#BEDFEF",
"type": "color"
},
"300": {
"value": "#91C6DE",
"type": "color"
},
"400": {
"value": "#67ABCB",
"type": "color"
},
"500": {
"value": "#468EAF",
"type": "color"
},
"600": {
"value": "#3C6F86",
"type": "color"
},
"700": {
"value": "#2F5060",
"type": "color"
},
"800": {
"value": "#22363F",
"type": "color"
},
"900": {
"value": "#162227",
"type": "color"
}
}
}
}