#C3DECB is a pale, temperate off-white. On the Color Lab it reads 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 #C3DECB works with other colors. Named schemes with #C3DECB in its natural role, and a note on why the supporting colors balance it.
Seafoam 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.
Seafoam opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Seafoam leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Seafoam keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Seafoam 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 Seafoam carrying the quiet middle.
How #C3DECB 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 #C3DECB at work across the surfaces designers actually ship.
:root {
--color-base: #C3DECB;
--color-base-rgb: 195 222 203;
--color-base-oklch: oklch(87.5% 0.039 154.9);
--color-50: #F5FAF6;
--color-100: #E4F1E8;
--color-200: #CAE2D1;
--color-300: #A5CAB0;
--color-400: #81B18F;
--color-500: #619470;
--color-600: #4F735A;
--color-700: #3C5343;
--color-800: #29372E;
--color-900: #1B231D;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
seafoam: {
50: '#F5FAF6',
100: '#E4F1E8',
200: '#CAE2D1',
300: '#A5CAB0',
400: '#81B18F',
500: '#619470',
600: '#4F735A',
700: '#3C5343',
800: '#29372E',
900: '#1B231D',
},
}
$base: #C3DECB; $base-ink: #141310; $base-50: #F5FAF6; $base-100: #E4F1E8; $base-200: #CAE2D1; $base-300: #A5CAB0; $base-400: #81B18F; $base-500: #619470; $base-600: #4F735A; $base-700: #3C5343; $base-800: #29372E; $base-900: #1B231D; $base-hover: #8EC19D; $base-subtle: #EEF4F0;
{
"color": {
"base": {
"value": "#C3DECB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5FAF6",
"type": "color"
},
"100": {
"value": "#E4F1E8",
"type": "color"
},
"200": {
"value": "#CAE2D1",
"type": "color"
},
"300": {
"value": "#A5CAB0",
"type": "color"
},
"400": {
"value": "#81B18F",
"type": "color"
},
"500": {
"value": "#619470",
"type": "color"
},
"600": {
"value": "#4F735A",
"type": "color"
},
"700": {
"value": "#3C5343",
"type": "color"
},
"800": {
"value": "#29372E",
"type": "color"
},
"900": {
"value": "#1B231D",
"type": "color"
}
}
}
}