#4FCBDB is a soft, cool cyan-blue. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #4FCBDB works with other colors. Named schemes with #4FCBDB in its natural role, and a note on why the supporting colors balance it.
Lagoon Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Lagoon Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Lagoon 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 Lagoon Blue.
Lagoon 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 Lagoon Blue carrying the quiet middle.
Lagoon 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 #4FCBDB 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 #4FCBDB at work across the surfaces designers actually ship.
:root {
--color-base: #4FCBDB;
--color-base-rgb: 79 203 219;
--color-base-oklch: oklch(78.0% 0.110 207.1);
--color-50: #F2FCFD;
--color-100: #DCF6F9;
--color-200: #BBEBF1;
--color-300: #8DD8E2;
--color-400: #62C3D0;
--color-500: #40A7B5;
--color-600: #38808A;
--color-700: #2D5C62;
--color-800: #213D40;
--color-900: #162528;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
lagoon-blue: {
50: '#F2FCFD',
100: '#DCF6F9',
200: '#BBEBF1',
300: '#8DD8E2',
400: '#62C3D0',
500: '#40A7B5',
600: '#38808A',
700: '#2D5C62',
800: '#213D40',
900: '#162528',
},
}
$base: #4FCBDB; $base-ink: #141310; $base-50: #F2FCFD; $base-100: #DCF6F9; $base-200: #BBEBF1; $base-300: #8DD8E2; $base-400: #62C3D0; $base-500: #40A7B5; $base-600: #38808A; $base-700: #2D5C62; $base-800: #213D40; $base-900: #162528; $base-hover: #28B2C4; $base-subtle: #CFEBEF;
{
"color": {
"base": {
"value": "#4FCBDB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFD",
"type": "color"
},
"100": {
"value": "#DCF6F9",
"type": "color"
},
"200": {
"value": "#BBEBF1",
"type": "color"
},
"300": {
"value": "#8DD8E2",
"type": "color"
},
"400": {
"value": "#62C3D0",
"type": "color"
},
"500": {
"value": "#40A7B5",
"type": "color"
},
"600": {
"value": "#38808A",
"type": "color"
},
"700": {
"value": "#2D5C62",
"type": "color"
},
"800": {
"value": "#213D40",
"type": "color"
},
"900": {
"value": "#162528",
"type": "color"
}
}
}
}