#E9F3F6 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 #E9F3F6 works with other colors. Named schemes with #E9F3F6 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 #E9F3F6 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 #E9F3F6 at work across the surfaces designers actually ship.
:root {
--color-base: #E9F3F6;
--color-base-rgb: 233 243 246;
--color-base-oklch: oklch(95.8% 0.011 217.5);
--color-50: #F4F9FB;
--color-100: #E2EFF4;
--color-200: #C5DFE7;
--color-300: #9CC6D3;
--color-400: #76ACBC;
--color-500: #558E9F;
--color-600: #476F7B;
--color-700: #365058;
--color-800: #26363B;
--color-900: #192224;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cool-white: {
50: '#F4F9FB',
100: '#E2EFF4',
200: '#C5DFE7',
300: '#9CC6D3',
400: '#76ACBC',
500: '#558E9F',
600: '#476F7B',
700: '#365058',
800: '#26363B',
900: '#192224',
},
}
$base: #E9F3F6; $base-ink: #141310; $base-50: #F4F9FB; $base-100: #E2EFF4; $base-200: #C5DFE7; $base-300: #9CC6D3; $base-400: #76ACBC; $base-500: #558E9F; $base-600: #476F7B; $base-700: #365058; $base-800: #26363B; $base-900: #192224; $base-hover: #A5CEDA; $base-subtle: #F9FBFC;
{
"color": {
"base": {
"value": "#E9F3F6",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F9FB",
"type": "color"
},
"100": {
"value": "#E2EFF4",
"type": "color"
},
"200": {
"value": "#C5DFE7",
"type": "color"
},
"300": {
"value": "#9CC6D3",
"type": "color"
},
"400": {
"value": "#76ACBC",
"type": "color"
},
"500": {
"value": "#558E9F",
"type": "color"
},
"600": {
"value": "#476F7B",
"type": "color"
},
"700": {
"value": "#365058",
"type": "color"
},
"800": {
"value": "#26363B",
"type": "color"
},
"900": {
"value": "#192224",
"type": "color"
}
}
}
}