#C4F4F5 is a muted, cool cyan-blue. 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 #C4F4F5 works with other colors. Named schemes with #C4F4F5 in its natural role, and a note on why the supporting colors balance it.
Celeste keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Celeste 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.
Celeste opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Celeste 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 Celeste carrying the quiet middle.
Celeste is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Celeste.
How #C4F4F5 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 #C4F4F5 at work across the surfaces designers actually ship.
:root {
--color-base: #C4F4F5;
--color-base-rgb: 196 244 245;
--color-base-oklch: oklch(93.4% 0.049 197.9);
--color-50: #F1FDFD;
--color-100: #DBF9FA;
--color-200: #B9F2F3;
--color-300: #8AE4E5;
--color-400: #5ED2D4;
--color-500: #3CB7B9;
--color-600: #358C8D;
--color-700: #2B6364;
--color-800: #1F4142;
--color-900: #152828;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
celeste: {
50: '#F1FDFD',
100: '#DBF9FA',
200: '#B9F2F3',
300: '#8AE4E5',
400: '#5ED2D4',
500: '#3CB7B9',
600: '#358C8D',
700: '#2B6364',
800: '#1F4142',
900: '#152828',
},
}
$base: #C4F4F5; $base-ink: #141310; $base-50: #F1FDFD; $base-100: #DBF9FA; $base-200: #B9F2F3; $base-300: #8AE4E5; $base-400: #5ED2D4; $base-500: #3CB7B9; $base-600: #358C8D; $base-700: #2B6364; $base-800: #1F4142; $base-900: #152828; $base-hover: #77E6E8; $base-subtle: #EFFAFA;
{
"color": {
"base": {
"value": "#C4F4F5",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FDFD",
"type": "color"
},
"100": {
"value": "#DBF9FA",
"type": "color"
},
"200": {
"value": "#B9F2F3",
"type": "color"
},
"300": {
"value": "#8AE4E5",
"type": "color"
},
"400": {
"value": "#5ED2D4",
"type": "color"
},
"500": {
"value": "#3CB7B9",
"type": "color"
},
"600": {
"value": "#358C8D",
"type": "color"
},
"700": {
"value": "#2B6364",
"type": "color"
},
"800": {
"value": "#1F4142",
"type": "color"
},
"900": {
"value": "#152828",
"type": "color"
}
}
}
}