#91BEBF is a muted, cool cyan-blue. On the Color Lab it reads clean and engineered, restrained and easy to live with. It holds up as a large surface and is too pale to lead as a primary accent.
Not just a swatch — here's how #91BEBF works with other colors. Named schemes with #91BEBF 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 #91BEBF 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 #91BEBF at work across the surfaces designers actually ship.
:root {
--color-base: #91BEBF;
--color-base-rgb: 145 190 191;
--color-base-oklch: oklch(77.0% 0.048 197.9);
--color-50: #F5F9FA;
--color-100: #E5F0F0;
--color-200: #CCE0E1;
--color-300: #A7C8C8;
--color-400: #83AEAF;
--color-500: #649191;
--color-600: #517171;
--color-700: #3D5252;
--color-800: #2A3637;
--color-900: #1B2222;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
ash-gray: {
50: '#F5F9FA',
100: '#E5F0F0',
200: '#CCE0E1',
300: '#A7C8C8',
400: '#83AEAF',
500: '#649191',
600: '#517171',
700: '#3D5252',
800: '#2A3637',
900: '#1B2222',
},
}
$base: #91BEBF; $base-ink: #141310; $base-50: #F5F9FA; $base-100: #E5F0F0; $base-200: #CCE0E1; $base-300: #A7C8C8; $base-400: #83AEAF; $base-500: #649191; $base-600: #517171; $base-700: #3D5252; $base-800: #2A3637; $base-900: #1B2222; $base-hover: #67A5A6; $base-subtle: #E0EAEA;
{
"color": {
"base": {
"value": "#91BEBF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F9FA",
"type": "color"
},
"100": {
"value": "#E5F0F0",
"type": "color"
},
"200": {
"value": "#CCE0E1",
"type": "color"
},
"300": {
"value": "#A7C8C8",
"type": "color"
},
"400": {
"value": "#83AEAF",
"type": "color"
},
"500": {
"value": "#649191",
"type": "color"
},
"600": {
"value": "#517171",
"type": "color"
},
"700": {
"value": "#3D5252",
"type": "color"
},
"800": {
"value": "#2A3637",
"type": "color"
},
"900": {
"value": "#1B2222",
"type": "color"
}
}
}
}