#059DD4 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 #059DD4 works with other colors. Named schemes with #059DD4 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 #059DD4 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 #059DD4 at work across the surfaces designers actually ship.
:root {
--color-base: #059DD4;
--color-base-rgb: 5 157 212;
--color-base-oklch: oklch(65.4% 0.134 232.6);
--color-50: #F0FBFE;
--color-100: #D8F3FD;
--color-200: #B1E8FC;
--color-300: #7AD4F5;
--color-400: #4ABEE8;
--color-500: #27A1CE;
--color-600: #267C9C;
--color-700: #21596E;
--color-800: #1A3B47;
--color-900: #12252B;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F0FBFE',
100: '#D8F3FD',
200: '#B1E8FC',
300: '#7AD4F5',
400: '#4ABEE8',
500: '#27A1CE',
600: '#267C9C',
700: '#21596E',
800: '#1A3B47',
900: '#12252B',
},
}
$base: #059DD4; $base-ink: #141310; $base-50: #F0FBFE; $base-100: #D8F3FD; $base-200: #B1E8FC; $base-300: #7AD4F5; $base-400: #4ABEE8; $base-500: #27A1CE; $base-600: #267C9C; $base-700: #21596E; $base-800: #1A3B47; $base-900: #12252B; $base-hover: #047FAB; $base-subtle: #B4E2F3;
{
"color": {
"base": {
"value": "#059DD4",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FBFE",
"type": "color"
},
"100": {
"value": "#D8F3FD",
"type": "color"
},
"200": {
"value": "#B1E8FC",
"type": "color"
},
"300": {
"value": "#7AD4F5",
"type": "color"
},
"400": {
"value": "#4ABEE8",
"type": "color"
},
"500": {
"value": "#27A1CE",
"type": "color"
},
"600": {
"value": "#267C9C",
"type": "color"
},
"700": {
"value": "#21596E",
"type": "color"
},
"800": {
"value": "#1A3B47",
"type": "color"
},
"900": {
"value": "#12252B",
"type": "color"
}
}
}
}