#EFF5F1 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 #EFF5F1 works with other colors. Named schemes with #EFF5F1 in its natural role, and a note on why the supporting colors balance it.
White Smoke 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.
White Smoke opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
White Smoke leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
White Smoke is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of White Smoke.
White Smoke 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 White Smoke carrying the quiet middle.
How #EFF5F1 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 #EFF5F1 at work across the surfaces designers actually ship.
:root {
--color-base: #EFF5F1;
--color-base-rgb: 239 245 241;
--color-base-oklch: oklch(96.5% 0.008 157.1);
--color-50: #F5F9F7;
--color-100: #E6F0E9;
--color-200: #CDE0D3;
--color-300: #A9C6B3;
--color-400: #86AC93;
--color-500: #668F74;
--color-600: #536F5C;
--color-700: #3E5144;
--color-800: #2B362F;
--color-900: #1B221E;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
white-smoke: {
50: '#F5F9F7',
100: '#E6F0E9',
200: '#CDE0D3',
300: '#A9C6B3',
400: '#86AC93',
500: '#668F74',
600: '#536F5C',
700: '#3E5144',
800: '#2B362F',
900: '#1B221E',
},
}
$base: #EFF5F1; $base-ink: #141310; $base-50: #F5F9F7; $base-100: #E6F0E9; $base-200: #CDE0D3; $base-300: #A9C6B3; $base-400: #86AC93; $base-500: #668F74; $base-600: #536F5C; $base-700: #3E5144; $base-800: #2B362F; $base-900: #1B221E; $base-hover: #B4D0BD; $base-subtle: #FBFCFB;
{
"color": {
"base": {
"value": "#EFF5F1",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F9F7",
"type": "color"
},
"100": {
"value": "#E6F0E9",
"type": "color"
},
"200": {
"value": "#CDE0D3",
"type": "color"
},
"300": {
"value": "#A9C6B3",
"type": "color"
},
"400": {
"value": "#86AC93",
"type": "color"
},
"500": {
"value": "#668F74",
"type": "color"
},
"600": {
"value": "#536F5C",
"type": "color"
},
"700": {
"value": "#3E5144",
"type": "color"
},
"800": {
"value": "#2B362F",
"type": "color"
},
"900": {
"value": "#1B221E",
"type": "color"
}
}
}
}