#91DDDF is a soft, cool cyan-blue. On the Color Lab it reads clean and engineered. It holds up as a large surface and is too pale to lead as a primary accent.
Not just a swatch — here's how #91DDDF works with other colors. Named schemes with #91DDDF in its natural role, and a note on why the supporting colors balance it.
Light Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Light Blue 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.
Light Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Light Blue 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 Light Blue carrying the quiet middle.
Light Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Light Blue.
How #91DDDF 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 #91DDDF at work across the surfaces designers actually ship.
:root {
--color-base: #91DDDF;
--color-base-rgb: 145 221 223;
--color-base-oklch: oklch(84.9% 0.075 197.9);
--color-50: #F3FCFC;
--color-100: #DFF6F6;
--color-200: #C0EBED;
--color-300: #94D9DB;
--color-400: #6BC3C7;
--color-500: #4AA8AB;
--color-600: #3F8183;
--color-700: #315C5E;
--color-800: #233D3E;
--color-900: #172626;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
light-blue: {
50: '#F3FCFC',
100: '#DFF6F6',
200: '#C0EBED',
300: '#94D9DB',
400: '#6BC3C7',
500: '#4AA8AB',
600: '#3F8183',
700: '#315C5E',
800: '#233D3E',
900: '#172626',
},
}
$base: #91DDDF; $base-ink: #141310; $base-50: #F3FCFC; $base-100: #DFF6F6; $base-200: #C0EBED; $base-300: #94D9DB; $base-400: #6BC3C7; $base-500: #4AA8AB; $base-600: #3F8183; $base-700: #315C5E; $base-800: #233D3E; $base-900: #172626; $base-hover: #57CACE; $base-subtle: #E1F2F3;
{
"color": {
"base": {
"value": "#91DDDF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FCFC",
"type": "color"
},
"100": {
"value": "#DFF6F6",
"type": "color"
},
"200": {
"value": "#C0EBED",
"type": "color"
},
"300": {
"value": "#94D9DB",
"type": "color"
},
"400": {
"value": "#6BC3C7",
"type": "color"
},
"500": {
"value": "#4AA8AB",
"type": "color"
},
"600": {
"value": "#3F8183",
"type": "color"
},
"700": {
"value": "#315C5E",
"type": "color"
},
"800": {
"value": "#233D3E",
"type": "color"
},
"900": {
"value": "#172626",
"type": "color"
}
}
}
}