#4BC1BF is a mid-toned, cool cyan. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #4BC1BF works with other colors. Named schemes with #4BC1BF in its natural role, and a note on why the supporting colors balance it.
Robin Egg Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Robin Egg Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Robin Egg 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 Robin Egg Blue carrying the quiet middle.
Robin Egg 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 Robin Egg Blue.
Robin Egg 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 #4BC1BF 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 #4BC1BF at work across the surfaces designers actually ship.
:root {
--color-base: #4BC1BF;
--color-base-rgb: 75 193 191;
--color-base-oklch: oklch(74.5% 0.105 193.6);
--color-50: #F3FBFB;
--color-100: #E0F5F5;
--color-200: #C2EAE9;
--color-300: #98D7D6;
--color-400: #70C2C0;
--color-500: #4FA6A4;
--color-600: #427F7E;
--color-700: #345B5B;
--color-800: #253C3C;
--color-900: #182525;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
robin-egg-blue: {
50: '#F3FBFB',
100: '#E0F5F5',
200: '#C2EAE9',
300: '#98D7D6',
400: '#70C2C0',
500: '#4FA6A4',
600: '#427F7E',
700: '#345B5B',
800: '#253C3C',
900: '#182525',
},
}
$base: #4BC1BF; $base-ink: #141310; $base-50: #F3FBFB; $base-100: #E0F5F5; $base-200: #C2EAE9; $base-300: #98D7D6; $base-400: #70C2C0; $base-500: #4FA6A4; $base-600: #427F7E; $base-700: #345B5B; $base-800: #253C3C; $base-900: #182525; $base-hover: #37A19F; $base-subtle: #CEE8E8;
{
"color": {
"base": {
"value": "#4BC1BF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FBFB",
"type": "color"
},
"100": {
"value": "#E0F5F5",
"type": "color"
},
"200": {
"value": "#C2EAE9",
"type": "color"
},
"300": {
"value": "#98D7D6",
"type": "color"
},
"400": {
"value": "#70C2C0",
"type": "color"
},
"500": {
"value": "#4FA6A4",
"type": "color"
},
"600": {
"value": "#427F7E",
"type": "color"
},
"700": {
"value": "#345B5B",
"type": "color"
},
"800": {
"value": "#253C3C",
"type": "color"
},
"900": {
"value": "#182525",
"type": "color"
}
}
}
}