#31B2BC is a mid-toned, cool cyan-blue. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #31B2BC works with other colors. Named schemes with #31B2BC in its natural role, and a note on why the supporting colors balance it.
Verdigris opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Verdigris keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Verdigris is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Verdigris.
Verdigris 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 Verdigris carrying the quiet middle.
Verdigris anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
How #31B2BC 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 #31B2BC at work across the surfaces designers actually ship.
:root {
--color-base: #31B2BC;
--color-base-rgb: 49 178 188;
--color-base-oklch: oklch(70.1% 0.108 202.8);
--color-50: #F2FCFC;
--color-100: #DEF6F7;
--color-200: #BEEBEE;
--color-300: #92D9DE;
--color-400: #68C3CA;
--color-500: #46A7AE;
--color-600: #3C8186;
--color-700: #305C5F;
--color-800: #223D3F;
--color-900: #172627;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
verdigris: {
50: '#F2FCFC',
100: '#DEF6F7',
200: '#BEEBEE',
300: '#92D9DE',
400: '#68C3CA',
500: '#46A7AE',
600: '#3C8186',
700: '#305C5F',
800: '#223D3F',
900: '#172627',
},
}
$base: #31B2BC; $base-ink: #141310; $base-50: #F2FCFC; $base-100: #DEF6F7; $base-200: #BEEBEE; $base-300: #92D9DE; $base-400: #68C3CA; $base-500: #46A7AE; $base-600: #3C8186; $base-700: #305C5F; $base-800: #223D3F; $base-900: #172627; $base-hover: #268E95; $base-subtle: #C3E6E8;
{
"color": {
"base": {
"value": "#31B2BC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFC",
"type": "color"
},
"100": {
"value": "#DEF6F7",
"type": "color"
},
"200": {
"value": "#BEEBEE",
"type": "color"
},
"300": {
"value": "#92D9DE",
"type": "color"
},
"400": {
"value": "#68C3CA",
"type": "color"
},
"500": {
"value": "#46A7AE",
"type": "color"
},
"600": {
"value": "#3C8186",
"type": "color"
},
"700": {
"value": "#305C5F",
"type": "color"
},
"800": {
"value": "#223D3F",
"type": "color"
},
"900": {
"value": "#172627",
"type": "color"
}
}
}
}