#EFF0FD is a light neutral with only a whisper of temperate cast. 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 #EFF0FD works with other colors. Named schemes with #EFF0FD in its natural role, and a note on why the supporting colors balance it.
Cool White 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.
Cool White opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cool White is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Cool White.
Cool White keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cool White 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 Cool White carrying the quiet middle.
How #EFF0FD 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 #EFF0FD at work across the surfaces designers actually ship.
:root {
--color-base: #EFF0FD;
--color-base-rgb: 239 240 253;
--color-base-oklch: oklch(95.8% 0.017 282.5);
--color-50: #F1F2FE;
--color-100: #DADCFB;
--color-200: #B6BBF6;
--color-300: #858CEA;
--color-400: #5861DA;
--color-500: #363FBF;
--color-600: #303791;
--color-700: #282C67;
--color-800: #1E2043;
--color-900: #141529;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cool-white: {
50: '#F1F2FE',
100: '#DADCFB',
200: '#B6BBF6',
300: '#858CEA',
400: '#5861DA',
500: '#363FBF',
600: '#303791',
700: '#282C67',
800: '#1E2043',
900: '#141529',
},
}
$base: #EFF0FD; $base-ink: #141310; $base-50: #F1F2FE; $base-100: #DADCFB; $base-200: #B6BBF6; $base-300: #858CEA; $base-400: #5861DA; $base-500: #363FBF; $base-600: #303791; $base-700: #282C67; $base-800: #1E2043; $base-900: #141529; $base-hover: #969CF2; $base-subtle: #FAFAFE;
{
"color": {
"base": {
"value": "#EFF0FD",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F2FE",
"type": "color"
},
"100": {
"value": "#DADCFB",
"type": "color"
},
"200": {
"value": "#B6BBF6",
"type": "color"
},
"300": {
"value": "#858CEA",
"type": "color"
},
"400": {
"value": "#5861DA",
"type": "color"
},
"500": {
"value": "#363FBF",
"type": "color"
},
"600": {
"value": "#303791",
"type": "color"
},
"700": {
"value": "#282C67",
"type": "color"
},
"800": {
"value": "#1E2043",
"type": "color"
},
"900": {
"value": "#141529",
"type": "color"
}
}
}
}