#4FCFEF is a soft, cool blue. On the Color Lab it reads clean and engineered. It is too pale to lead as a primary accent and sits well as a supporting tone.
Not just a swatch — here's how #4FCFEF works with other colors. Named schemes with #4FCFEF 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 #4FCFEF 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 #4FCFEF at work across the surfaces designers actually ship.
:root {
--color-base: #4FCFEF;
--color-base-rgb: 79 207 239;
--color-base-oklch: oklch(79.7% 0.119 217.6);
--color-50: #F0FCFE;
--color-100: #D9F5FD;
--color-200: #B4EAF8;
--color-300: #82D8ED;
--color-400: #54C2DE;
--color-500: #31A6C3;
--color-600: #2D8095;
--color-700: #265C69;
--color-800: #1C3C44;
--color-900: #13252A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
lagoon-blue: {
50: '#F0FCFE',
100: '#D9F5FD',
200: '#B4EAF8',
300: '#82D8ED',
400: '#54C2DE',
500: '#31A6C3',
600: '#2D8095',
700: '#265C69',
800: '#1C3C44',
900: '#13252A',
},
}
$base: #4FCFEF; $base-ink: #141310; $base-50: #F0FCFE; $base-100: #D9F5FD; $base-200: #B4EAF8; $base-300: #82D8ED; $base-400: #54C2DE; $base-500: #31A6C3; $base-600: #2D8095; $base-700: #265C69; $base-800: #1C3C44; $base-900: #13252A; $base-hover: #16BDE7; $base-subtle: #D0EDF4;
{
"color": {
"base": {
"value": "#4FCFEF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FCFE",
"type": "color"
},
"100": {
"value": "#D9F5FD",
"type": "color"
},
"200": {
"value": "#B4EAF8",
"type": "color"
},
"300": {
"value": "#82D8ED",
"type": "color"
},
"400": {
"value": "#54C2DE",
"type": "color"
},
"500": {
"value": "#31A6C3",
"type": "color"
},
"600": {
"value": "#2D8095",
"type": "color"
},
"700": {
"value": "#265C69",
"type": "color"
},
"800": {
"value": "#1C3C44",
"type": "color"
},
"900": {
"value": "#13252A",
"type": "color"
}
}
}
}