#39BFD9 is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #39BFD9 works with other colors. Named schemes with #39BFD9 in its natural role, and a note on why the supporting colors balance it.
Lagoon Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Lagoon Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Lagoon Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Lagoon Blue.
Lagoon Blue 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 Lagoon Blue carrying the quiet middle.
Lagoon Blue 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 #39BFD9 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 #39BFD9 at work across the surfaces designers actually ship.
:root {
--color-base: #39BFD9;
--color-base-rgb: 57 191 217;
--color-base-oklch: oklch(74.5% 0.117 213.8);
--color-50: #F2FBFD;
--color-100: #DCF4F9;
--color-200: #BBE9F2;
--color-300: #8CD5E3;
--color-400: #61BFD1;
--color-500: #3FA2B6;
--color-600: #377D8B;
--color-700: #2C5A63;
--color-800: #203B41;
--color-900: #152528;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
lagoon-blue: {
50: '#F2FBFD',
100: '#DCF4F9',
200: '#BBE9F2',
300: '#8CD5E3',
400: '#61BFD1',
500: '#3FA2B6',
600: '#377D8B',
700: '#2C5A63',
800: '#203B41',
900: '#152528',
},
}
$base: #39BFD9; $base-ink: #141310; $base-50: #F2FBFD; $base-100: #DCF4F9; $base-200: #BBE9F2; $base-300: #8CD5E3; $base-400: #61BFD1; $base-500: #3FA2B6; $base-600: #377D8B; $base-700: #2C5A63; $base-800: #203B41; $base-900: #152528; $base-hover: #23A0B9; $base-subtle: #CAE8EE;
{
"color": {
"base": {
"value": "#39BFD9",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FBFD",
"type": "color"
},
"100": {
"value": "#DCF4F9",
"type": "color"
},
"200": {
"value": "#BBE9F2",
"type": "color"
},
"300": {
"value": "#8CD5E3",
"type": "color"
},
"400": {
"value": "#61BFD1",
"type": "color"
},
"500": {
"value": "#3FA2B6",
"type": "color"
},
"600": {
"value": "#377D8B",
"type": "color"
},
"700": {
"value": "#2C5A63",
"type": "color"
},
"800": {
"value": "#203B41",
"type": "color"
},
"900": {
"value": "#152528",
"type": "color"
}
}
}
}