#91C9BC 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 #91C9BC works with other colors. Named schemes with #91C9BC in its natural role, and a note on why the supporting colors balance it.
Ash Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Ash Gray 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.
Ash Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Ash Gray 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 Ash Gray carrying the quiet middle.
Ash Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Ash Gray.
How #91C9BC 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 #91C9BC at work across the surfaces designers actually ship.
:root {
--color-base: #91C9BC;
--color-base-rgb: 145 201 188;
--color-base-oklch: oklch(79.3% 0.061 178.7);
--color-50: #F4FAF9;
--color-100: #E3F2EF;
--color-200: #C8E4DE;
--color-300: #A2CEC3;
--color-400: #7DB5A8;
--color-500: #5C988A;
--color-600: #4C766C;
--color-700: #3A554F;
--color-800: #283935;
--color-900: #1A2321;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
ash-gray: {
50: '#F4FAF9',
100: '#E3F2EF',
200: '#C8E4DE',
300: '#A2CEC3',
400: '#7DB5A8',
500: '#5C988A',
600: '#4C766C',
700: '#3A554F',
800: '#283935',
900: '#1A2321',
},
}
$base: #91C9BC; $base-ink: #141310; $base-50: #F4FAF9; $base-100: #E3F2EF; $base-200: #C8E4DE; $base-300: #A2CEC3; $base-400: #7DB5A8; $base-500: #5C988A; $base-600: #4C766C; $base-700: #3A554F; $base-800: #283935; $base-900: #1A2321; $base-hover: #63B2A0; $base-subtle: #E0EDEA;
{
"color": {
"base": {
"value": "#91C9BC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FAF9",
"type": "color"
},
"100": {
"value": "#E3F2EF",
"type": "color"
},
"200": {
"value": "#C8E4DE",
"type": "color"
},
"300": {
"value": "#A2CEC3",
"type": "color"
},
"400": {
"value": "#7DB5A8",
"type": "color"
},
"500": {
"value": "#5C988A",
"type": "color"
},
"600": {
"value": "#4C766C",
"type": "color"
},
"700": {
"value": "#3A554F",
"type": "color"
},
"800": {
"value": "#283935",
"type": "color"
},
"900": {
"value": "#1A2321",
"type": "color"
}
}
}
}