#E4EEF3 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 #E4EEF3 works with other colors. Named schemes with #E4EEF3 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 #E4EEF3 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 #E4EEF3 at work across the surfaces designers actually ship.
:root {
--color-base: #E4EEF3;
--color-base-rgb: 228 238 243;
--color-base-oklch: oklch(94.3% 0.013 228.9);
--color-50: #F4F8FB;
--color-100: #E2EDF3;
--color-200: #C7DBE6;
--color-300: #9FC0D0;
--color-400: #7AA3B8;
--color-500: #59869C;
--color-600: #496979;
--color-700: #384D57;
--color-800: #27333A;
--color-900: #192024;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cool-white: {
50: '#F4F8FB',
100: '#E2EDF3',
200: '#C7DBE6',
300: '#9FC0D0',
400: '#7AA3B8',
500: '#59869C',
600: '#496979',
700: '#384D57',
800: '#27333A',
900: '#192024',
},
}
$base: #E4EEF3; $base-ink: #141310; $base-50: #F4F8FB; $base-100: #E2EDF3; $base-200: #C7DBE6; $base-300: #9FC0D0; $base-400: #7AA3B8; $base-500: #59869C; $base-600: #496979; $base-700: #384D57; $base-800: #27333A; $base-900: #192024; $base-hover: #A2C4D5; $base-subtle: #F7F9FB;
{
"color": {
"base": {
"value": "#E4EEF3",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F8FB",
"type": "color"
},
"100": {
"value": "#E2EDF3",
"type": "color"
},
"200": {
"value": "#C7DBE6",
"type": "color"
},
"300": {
"value": "#9FC0D0",
"type": "color"
},
"400": {
"value": "#7AA3B8",
"type": "color"
},
"500": {
"value": "#59869C",
"type": "color"
},
"600": {
"value": "#496979",
"type": "color"
},
"700": {
"value": "#384D57",
"type": "color"
},
"800": {
"value": "#27333A",
"type": "color"
},
"900": {
"value": "#192024",
"type": "color"
}
}
}
}