#C9DAEB is a pale, temperate off-white. 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 #C9DAEB works with other colors. Named schemes with #C9DAEB in its natural role, and a note on why the supporting colors balance it.
Gainsboro keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Gainsboro opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Gainsboro 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.
Gainsboro is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Gainsboro.
Gainsboro 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 Gainsboro carrying the quiet middle.
How #C9DAEB 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 #C9DAEB at work across the surfaces designers actually ship.
:root {
--color-base: #C9DAEB;
--color-base-rgb: 201 218 235;
--color-base-oklch: oklch(88.1% 0.030 248.2);
--color-50: #F3F7FB;
--color-100: #E1EBF5;
--color-200: #C4D6E9;
--color-300: #9AB8D5;
--color-400: #7399BF;
--color-500: #527AA3;
--color-600: #44617E;
--color-700: #35475A;
--color-800: #25303C;
--color-900: #181F25;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
gainsboro: {
50: '#F3F7FB',
100: '#E1EBF5',
200: '#C4D6E9',
300: '#9AB8D5',
400: '#7399BF',
500: '#527AA3',
600: '#44617E',
700: '#35475A',
800: '#25303C',
900: '#181F25',
},
}
$base: #C9DAEB; $base-ink: #141310; $base-50: #F3F7FB; $base-100: #E1EBF5; $base-200: #C4D6E9; $base-300: #9AB8D5; $base-400: #7399BF; $base-500: #527AA3; $base-600: #44617E; $base-700: #35475A; $base-800: #25303C; $base-900: #181F25; $base-hover: #88ADD3; $base-subtle: #F0F4F8;
{
"color": {
"base": {
"value": "#C9DAEB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F7FB",
"type": "color"
},
"100": {
"value": "#E1EBF5",
"type": "color"
},
"200": {
"value": "#C4D6E9",
"type": "color"
},
"300": {
"value": "#9AB8D5",
"type": "color"
},
"400": {
"value": "#7399BF",
"type": "color"
},
"500": {
"value": "#527AA3",
"type": "color"
},
"600": {
"value": "#44617E",
"type": "color"
},
"700": {
"value": "#35475A",
"type": "color"
},
"800": {
"value": "#25303C",
"type": "color"
},
"900": {
"value": "#181F25",
"type": "color"
}
}
}
}