#91ECD9 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 #91ECD9 works with other colors. Named schemes with #91ECD9 in its natural role, and a note on why the supporting colors balance it.
Seafoam Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Seafoam Green 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 Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Seafoam Green 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 Green carrying the quiet middle.
Seafoam Green 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 Green.
How #91ECD9 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 #91ECD9 at work across the surfaces designers actually ship.
:root {
--color-base: #91ECD9;
--color-base-rgb: 145 236 217;
--color-base-oklch: oklch(88.1% 0.092 179.2);
--color-50: #F1FDFB;
--color-100: #DBFAF3;
--color-200: #B9F3E7;
--color-300: #8AE5D2;
--color-400: #5ED4BA;
--color-500: #3CB99E;
--color-600: #358D7A;
--color-700: #2B6458;
--color-800: #1F423A;
--color-900: #152824;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
seafoam-green: {
50: '#F1FDFB',
100: '#DBFAF3',
200: '#B9F3E7',
300: '#8AE5D2',
400: '#5ED4BA',
500: '#3CB99E',
600: '#358D7A',
700: '#2B6458',
800: '#1F423A',
900: '#152824',
},
}
$base: #91ECD9; $base-ink: #141310; $base-50: #F1FDFB; $base-100: #DBFAF3; $base-200: #B9F3E7; $base-300: #8AE5D2; $base-400: #5ED4BA; $base-500: #3CB99E; $base-600: #358D7A; $base-700: #2B6458; $base-800: #1F423A; $base-900: #152824; $base-hover: #51E1C2; $base-subtle: #E2F6F2;
{
"color": {
"base": {
"value": "#91ECD9",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FDFB",
"type": "color"
},
"100": {
"value": "#DBFAF3",
"type": "color"
},
"200": {
"value": "#B9F3E7",
"type": "color"
},
"300": {
"value": "#8AE5D2",
"type": "color"
},
"400": {
"value": "#5ED4BA",
"type": "color"
},
"500": {
"value": "#3CB99E",
"type": "color"
},
"600": {
"value": "#358D7A",
"type": "color"
},
"700": {
"value": "#2B6458",
"type": "color"
},
"800": {
"value": "#1F423A",
"type": "color"
},
"900": {
"value": "#152824",
"type": "color"
}
}
}
}