#91B5CC is a muted, cool 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 #91B5CC works with other colors. Named schemes with #91B5CC in its natural role, and a note on why the supporting colors balance it.
Cadet Grey keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cadet Grey opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cadet Grey 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.
Cadet Grey is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Cadet Grey.
Cadet Grey 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 Cadet Grey carrying the quiet middle.
How #91B5CC 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 #91B5CC at work across the surfaces designers actually ship.
:root {
--color-base: #91B5CC;
--color-base-rgb: 145 181 204;
--color-base-oklch: oklch(75.5% 0.051 236.4);
--color-50: #F4F8FA;
--color-100: #E3ECF3;
--color-200: #C7DAE5;
--color-300: #A0BDCF;
--color-400: #7AA0B8;
--color-500: #5A829B;
--color-600: #4A6678;
--color-700: #384B56;
--color-800: #283339;
--color-900: #1A2024;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cadet-grey: {
50: '#F4F8FA',
100: '#E3ECF3',
200: '#C7DAE5',
300: '#A0BDCF',
400: '#7AA0B8',
500: '#5A829B',
600: '#4A6678',
700: '#384B56',
800: '#283339',
900: '#1A2024',
},
}
$base: #91B5CC; $base-ink: #141310; $base-50: #F4F8FA; $base-100: #E3ECF3; $base-200: #C7DAE5; $base-300: #A0BDCF; $base-400: #7AA0B8; $base-500: #5A829B; $base-600: #4A6678; $base-700: #384B56; $base-800: #283339; $base-900: #1A2024; $base-hover: #6095B6; $base-subtle: #E0E8ED;
{
"color": {
"base": {
"value": "#91B5CC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F8FA",
"type": "color"
},
"100": {
"value": "#E3ECF3",
"type": "color"
},
"200": {
"value": "#C7DAE5",
"type": "color"
},
"300": {
"value": "#A0BDCF",
"type": "color"
},
"400": {
"value": "#7AA0B8",
"type": "color"
},
"500": {
"value": "#5A829B",
"type": "color"
},
"600": {
"value": "#4A6678",
"type": "color"
},
"700": {
"value": "#384B56",
"type": "color"
},
"800": {
"value": "#283339",
"type": "color"
},
"900": {
"value": "#1A2024",
"type": "color"
}
}
}
}