#DEF2F3 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 #DEF2F3 works with other colors. Named schemes with #DEF2F3 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 #DEF2F3 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 #DEF2F3 at work across the surfaces designers actually ship.
:root {
--color-base: #DEF2F3;
--color-base-rgb: 222 242 243;
--color-base-oklch: oklch(94.7% 0.021 200.4);
--color-50: #F3FBFB;
--color-100: #E0F4F5;
--color-200: #C3E7E9;
--color-300: #99D3D6;
--color-400: #72BCC0;
--color-500: #51A0A4;
--color-600: #447B7E;
--color-700: #34585A;
--color-800: #253B3C;
--color-900: #182425;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cool-white: {
50: '#F3FBFB',
100: '#E0F4F5',
200: '#C3E7E9',
300: '#99D3D6',
400: '#72BCC0',
500: '#51A0A4',
600: '#447B7E',
700: '#34585A',
800: '#253B3C',
900: '#182425',
},
}
$base: #DEF2F3; $base-ink: #141310; $base-50: #F3FBFB; $base-100: #E0F4F5; $base-200: #C3E7E9; $base-300: #99D3D6; $base-400: #72BCC0; $base-500: #51A0A4; $base-600: #447B7E; $base-700: #34585A; $base-800: #253B3C; $base-900: #182425; $base-hover: #99D7DA; $base-subtle: #F6FAFB;
{
"color": {
"base": {
"value": "#DEF2F3",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FBFB",
"type": "color"
},
"100": {
"value": "#E0F4F5",
"type": "color"
},
"200": {
"value": "#C3E7E9",
"type": "color"
},
"300": {
"value": "#99D3D6",
"type": "color"
},
"400": {
"value": "#72BCC0",
"type": "color"
},
"500": {
"value": "#51A0A4",
"type": "color"
},
"600": {
"value": "#447B7E",
"type": "color"
},
"700": {
"value": "#34585A",
"type": "color"
},
"800": {
"value": "#253B3C",
"type": "color"
},
"900": {
"value": "#182425",
"type": "color"
}
}
}
}