#349ADA 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 #349ADA works with other colors. Named schemes with #349ADA 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 #349ADA 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 #349ADA at work across the surfaces designers actually ship.
:root {
--color-base: #349ADA;
--color-base-rgb: 52 154 218;
--color-base-oklch: oklch(65.7% 0.132 241.0);
--color-50: #F2F9FD;
--color-100: #DCEEF9;
--color-200: #BADDF2;
--color-300: #8BC2E4;
--color-400: #60A6D2;
--color-500: #3E89B7;
--color-600: #366B8C;
--color-700: #2C4E63;
--color-800: #203441;
--color-900: #152128;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F2F9FD',
100: '#DCEEF9',
200: '#BADDF2',
300: '#8BC2E4',
400: '#60A6D2',
500: '#3E89B7',
600: '#366B8C',
700: '#2C4E63',
800: '#203441',
900: '#152128',
},
}
$base: #349ADA; $base-ink: #141310; $base-50: #F2F9FD; $base-100: #DCEEF9; $base-200: #BADDF2; $base-300: #8BC2E4; $base-400: #60A6D2; $base-500: #3E89B7; $base-600: #366B8C; $base-700: #2C4E63; $base-800: #203441; $base-900: #152128; $base-hover: #227EB7; $base-subtle: #C8DFEE;
{
"color": {
"base": {
"value": "#349ADA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F9FD",
"type": "color"
},
"100": {
"value": "#DCEEF9",
"type": "color"
},
"200": {
"value": "#BADDF2",
"type": "color"
},
"300": {
"value": "#8BC2E4",
"type": "color"
},
"400": {
"value": "#60A6D2",
"type": "color"
},
"500": {
"value": "#3E89B7",
"type": "color"
},
"600": {
"value": "#366B8C",
"type": "color"
},
"700": {
"value": "#2C4E63",
"type": "color"
},
"800": {
"value": "#203441",
"type": "color"
},
"900": {
"value": "#152128",
"type": "color"
}
}
}
}