#EFF2F5 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 #EFF2F5 works with other colors. Named schemes with #EFF2F5 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 #EFF2F5 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 #EFF2F5 at work across the surfaces designers actually ship.
:root {
--color-base: #EFF2F5;
--color-base-rgb: 239 242 245;
--color-base-oklch: oklch(96.0% 0.005 247.9);
--color-50: #F5F7F9;
--color-100: #E6EBF0;
--color-200: #CDD6E0;
--color-300: #A9B8C6;
--color-400: #8699AC;
--color-500: #667A8F;
--color-600: #53616F;
--color-700: #3E4751;
--color-800: #2B3036;
--color-900: #1B1F22;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cool-white: {
50: '#F5F7F9',
100: '#E6EBF0',
200: '#CDD6E0',
300: '#A9B8C6',
400: '#8699AC',
500: '#667A8F',
600: '#53616F',
700: '#3E4751',
800: '#2B3036',
900: '#1B1F22',
},
}
$base: #EFF2F5; $base-ink: #141310; $base-50: #F5F7F9; $base-100: #E6EBF0; $base-200: #CDD6E0; $base-300: #A9B8C6; $base-400: #8699AC; $base-500: #667A8F; $base-600: #53616F; $base-700: #3E4751; $base-800: #2B3036; $base-900: #1B1F22; $base-hover: #B4C2D0; $base-subtle: #FBFBFC;
{
"color": {
"base": {
"value": "#EFF2F5",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F7F9",
"type": "color"
},
"100": {
"value": "#E6EBF0",
"type": "color"
},
"200": {
"value": "#CDD6E0",
"type": "color"
},
"300": {
"value": "#A9B8C6",
"type": "color"
},
"400": {
"value": "#8699AC",
"type": "color"
},
"500": {
"value": "#667A8F",
"type": "color"
},
"600": {
"value": "#53616F",
"type": "color"
},
"700": {
"value": "#3E4751",
"type": "color"
},
"800": {
"value": "#2B3036",
"type": "color"
},
"900": {
"value": "#1B1F22",
"type": "color"
}
}
}
}