#4BB4DB is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #4BB4DB works with other colors. Named schemes with #4BB4DB in its natural role, and a note on why the supporting colors balance it.
Picton Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Picton Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Picton 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 Picton Blue.
Picton 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 Picton Blue carrying the quiet middle.
Picton 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 #4BB4DB 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 #4BB4DB at work across the surfaces designers actually ship.
:root {
--color-base: #4BB4DB;
--color-base-rgb: 75 180 219;
--color-base-oklch: oklch(72.5% 0.111 226.0);
--color-50: #F2FAFD;
--color-100: #DCF1F9;
--color-200: #BBE3F1;
--color-300: #8CCCE3;
--color-400: #62B3D0;
--color-500: #3F96B5;
--color-600: #37748B;
--color-700: #2C5462;
--color-800: #203841;
--color-900: #162328;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
picton-blue: {
50: '#F2FAFD',
100: '#DCF1F9',
200: '#BBE3F1',
300: '#8CCCE3',
400: '#62B3D0',
500: '#3F96B5',
600: '#37748B',
700: '#2C5462',
800: '#203841',
900: '#162328',
},
}
$base: #4BB4DB; $base-ink: #141310; $base-50: #F2FAFD; $base-100: #DCF1F9; $base-200: #BBE3F1; $base-300: #8CCCE3; $base-400: #62B3D0; $base-500: #3F96B5; $base-600: #37748B; $base-700: #2C5462; $base-800: #203841; $base-900: #162328; $base-hover: #279BC6; $base-subtle: #CFE7EF;
{
"color": {
"base": {
"value": "#4BB4DB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FAFD",
"type": "color"
},
"100": {
"value": "#DCF1F9",
"type": "color"
},
"200": {
"value": "#BBE3F1",
"type": "color"
},
"300": {
"value": "#8CCCE3",
"type": "color"
},
"400": {
"value": "#62B3D0",
"type": "color"
},
"500": {
"value": "#3F96B5",
"type": "color"
},
"600": {
"value": "#37748B",
"type": "color"
},
"700": {
"value": "#2C5462",
"type": "color"
},
"800": {
"value": "#203841",
"type": "color"
},
"900": {
"value": "#162328",
"type": "color"
}
}
}
}