#359DCA 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 #359DCA works with other colors. Named schemes with #359DCA 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 #359DCA 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 #359DCA at work across the surfaces designers actually ship.
:root {
--color-base: #359DCA;
--color-base-rgb: 53 157 202;
--color-base-oklch: oklch(65.7% 0.114 231.1);
--color-50: #F2F9FC;
--color-100: #DEF0F7;
--color-200: #BFE0EE;
--color-300: #92C7DD;
--color-400: #69ACC9;
--color-500: #478FAD;
--color-600: #3D6F85;
--color-700: #30515F;
--color-800: #23363E;
--color-900: #172226;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F2F9FC',
100: '#DEF0F7',
200: '#BFE0EE',
300: '#92C7DD',
400: '#69ACC9',
500: '#478FAD',
600: '#3D6F85',
700: '#30515F',
800: '#23363E',
900: '#172226',
},
}
$base: #359DCA; $base-ink: #141310; $base-50: #F2F9FC; $base-100: #DEF0F7; $base-200: #BFE0EE; $base-300: #92C7DD; $base-400: #69ACC9; $base-500: #478FAD; $base-600: #3D6F85; $base-700: #30515F; $base-800: #23363E; $base-900: #172226; $base-hover: #2B7EA1; $base-subtle: #C8DFEA;
{
"color": {
"base": {
"value": "#359DCA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F9FC",
"type": "color"
},
"100": {
"value": "#DEF0F7",
"type": "color"
},
"200": {
"value": "#BFE0EE",
"type": "color"
},
"300": {
"value": "#92C7DD",
"type": "color"
},
"400": {
"value": "#69ACC9",
"type": "color"
},
"500": {
"value": "#478FAD",
"type": "color"
},
"600": {
"value": "#3D6F85",
"type": "color"
},
"700": {
"value": "#30515F",
"type": "color"
},
"800": {
"value": "#23363E",
"type": "color"
},
"900": {
"value": "#172226",
"type": "color"
}
}
}
}