#B5ECDF is a soft, cool cyan. It holds up as a large surface and is too pale to lead as a primary accent.
Not just a swatch — here's how #B5ECDF works with other colors. Named schemes with #B5ECDF in its natural role, and a note on why the supporting colors balance it.
Seafoam keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Seafoam sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.
Seafoam opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Seafoam 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 Seafoam carrying the quiet middle.
Seafoam is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Seafoam.
How #B5ECDF 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 #B5ECDF at work across the surfaces designers actually ship.
:root {
--color-base: #B5ECDF;
--color-base-rgb: 181 236 223;
--color-base-oklch: oklch(90.2% 0.059 178.8);
--color-50: #F2FCFA;
--color-100: #DEF7F1;
--color-200: #BEEEE3;
--color-300: #92DECC;
--color-400: #68CAB3;
--color-500: #46AE96;
--color-600: #3C8674;
--color-700: #305F54;
--color-800: #223F38;
--color-900: #172723;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
seafoam: {
50: '#F2FCFA',
100: '#DEF7F1',
200: '#BEEEE3',
300: '#92DECC',
400: '#68CAB3',
500: '#46AE96',
600: '#3C8674',
700: '#305F54',
800: '#223F38',
900: '#172723',
},
}
$base: #B5ECDF; $base-ink: #141310; $base-50: #F2FCFA; $base-100: #DEF7F1; $base-200: #BEEEE3; $base-300: #92DECC; $base-400: #68CAB3; $base-500: #46AE96; $base-600: #3C8674; $base-700: #305F54; $base-800: #223F38; $base-900: #172723; $base-hover: #74DBC3; $base-subtle: #EBF7F5;
{
"color": {
"base": {
"value": "#B5ECDF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFA",
"type": "color"
},
"100": {
"value": "#DEF7F1",
"type": "color"
},
"200": {
"value": "#BEEEE3",
"type": "color"
},
"300": {
"value": "#92DECC",
"type": "color"
},
"400": {
"value": "#68CAB3",
"type": "color"
},
"500": {
"value": "#46AE96",
"type": "color"
},
"600": {
"value": "#3C8674",
"type": "color"
},
"700": {
"value": "#305F54",
"type": "color"
},
"800": {
"value": "#223F38",
"type": "color"
},
"900": {
"value": "#172723",
"type": "color"
}
}
}
}