#ECEFFD 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 #ECEFFD works with other colors. Named schemes with #ECEFFD 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 #ECEFFD 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 #ECEFFD at work across the surfaces designers actually ship.
:root {
--color-base: #ECEFFD;
--color-base-rgb: 236 239 253;
--color-base-oklch: oklch(95.4% 0.019 276.3);
--color-50: #F1F3FE;
--color-100: #D9E0FC;
--color-200: #B5C1F7;
--color-300: #8396EC;
--color-400: #566FDC;
--color-500: #334DC2;
--color-600: #2E4193;
--color-700: #273368;
--color-800: #1D2444;
--color-900: #14182A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cool-white: {
50: '#F1F3FE',
100: '#D9E0FC',
200: '#B5C1F7',
300: '#8396EC',
400: '#566FDC',
500: '#334DC2',
600: '#2E4193',
700: '#273368',
800: '#1D2444',
900: '#14182A',
},
}
$base: #ECEFFD; $base-ink: #141310; $base-50: #F1F3FE; $base-100: #D9E0FC; $base-200: #B5C1F7; $base-300: #8396EC; $base-400: #566FDC; $base-500: #334DC2; $base-600: #2E4193; $base-700: #273368; $base-800: #1D2444; $base-900: #14182A; $base-hover: #94A5F4; $base-subtle: #FAFBFE;
{
"color": {
"base": {
"value": "#ECEFFD",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F3FE",
"type": "color"
},
"100": {
"value": "#D9E0FC",
"type": "color"
},
"200": {
"value": "#B5C1F7",
"type": "color"
},
"300": {
"value": "#8396EC",
"type": "color"
},
"400": {
"value": "#566FDC",
"type": "color"
},
"500": {
"value": "#334DC2",
"type": "color"
},
"600": {
"value": "#2E4193",
"type": "color"
},
"700": {
"value": "#273368",
"type": "color"
},
"800": {
"value": "#1D2444",
"type": "color"
},
"900": {
"value": "#14182A",
"type": "color"
}
}
}
}