#4ECADD is a soft, 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 #4ECADD works with other colors. Named schemes with #4ECADD 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 #4ECADD 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 #4ECADD at work across the surfaces designers actually ship.
:root {
--color-base: #4ECADD;
--color-base-rgb: 78 202 221;
--color-base-oklch: oklch(77.8% 0.111 209.3);
--color-50: #F2FCFD;
--color-100: #DCF5F9;
--color-200: #BBEAF2;
--color-300: #8CD8E3;
--color-400: #61C2D1;
--color-500: #3FA6B6;
--color-600: #37808B;
--color-700: #2C5C63;
--color-800: #203C41;
--color-900: #152528;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
lagoon-blue: {
50: '#F2FCFD',
100: '#DCF5F9',
200: '#BBEAF2',
300: '#8CD8E3',
400: '#61C2D1',
500: '#3FA6B6',
600: '#37808B',
700: '#2C5C63',
800: '#203C41',
900: '#152528',
},
}
$base: #4ECADD; $base-ink: #141310; $base-50: #F2FCFD; $base-100: #DCF5F9; $base-200: #BBEAF2; $base-300: #8CD8E3; $base-400: #61C2D1; $base-500: #3FA6B6; $base-600: #37808B; $base-700: #2C5C63; $base-800: #203C41; $base-900: #152528; $base-hover: #27B4CA; $base-subtle: #CFECF0;
{
"color": {
"base": {
"value": "#4ECADD",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFD",
"type": "color"
},
"100": {
"value": "#DCF5F9",
"type": "color"
},
"200": {
"value": "#BBEAF2",
"type": "color"
},
"300": {
"value": "#8CD8E3",
"type": "color"
},
"400": {
"value": "#61C2D1",
"type": "color"
},
"500": {
"value": "#3FA6B6",
"type": "color"
},
"600": {
"value": "#37808B",
"type": "color"
},
"700": {
"value": "#2C5C63",
"type": "color"
},
"800": {
"value": "#203C41",
"type": "color"
},
"900": {
"value": "#152528",
"type": "color"
}
}
}
}