#B9EFDB is a soft, temperate teal. It holds up as a large surface and is too pale to lead as a primary accent.
Not just a swatch — here's how #B9EFDB works with other colors. Named schemes with #B9EFDB 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 #B9EFDB 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 #B9EFDB at work across the surfaces designers actually ship.
:root {
--color-base: #B9EFDB;
--color-base-rgb: 185 239 219;
--color-base-oklch: oklch(90.9% 0.062 170.2);
--color-50: #F2FDF9;
--color-100: #DDF8EE;
--color-200: #BDF0DD;
--color-300: #8FE0C2;
--color-400: #65CDA7;
--color-500: #43B289;
--color-600: #3A886B;
--color-700: #2E614E;
--color-800: #214034;
--color-900: #162721;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
seafoam: {
50: '#F2FDF9',
100: '#DDF8EE',
200: '#BDF0DD',
300: '#8FE0C2',
400: '#65CDA7',
500: '#43B289',
600: '#3A886B',
700: '#2E614E',
800: '#214034',
900: '#162721',
},
}
$base: #B9EFDB; $base-ink: #141310; $base-50: #F2FDF9; $base-100: #DDF8EE; $base-200: #BDF0DD; $base-300: #8FE0C2; $base-400: #65CDA7; $base-500: #43B289; $base-600: #3A886B; $base-700: #2E614E; $base-800: #214034; $base-900: #162721; $base-hover: #73DFB8; $base-subtle: #ECF8F4;
{
"color": {
"base": {
"value": "#B9EFDB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FDF9",
"type": "color"
},
"100": {
"value": "#DDF8EE",
"type": "color"
},
"200": {
"value": "#BDF0DD",
"type": "color"
},
"300": {
"value": "#8FE0C2",
"type": "color"
},
"400": {
"value": "#65CDA7",
"type": "color"
},
"500": {
"value": "#43B289",
"type": "color"
},
"600": {
"value": "#3A886B",
"type": "color"
},
"700": {
"value": "#2E614E",
"type": "color"
},
"800": {
"value": "#214034",
"type": "color"
},
"900": {
"value": "#162721",
"type": "color"
}
}
}
}