#5BBDCE is a soft, 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 #5BBDCE works with other colors. Named schemes with #5BBDCE 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 #5BBDCE 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 #5BBDCE at work across the surfaces designers actually ship.
:root {
--color-base: #5BBDCE;
--color-base-rgb: 91 189 206;
--color-base-oklch: oklch(74.6% 0.095 210.4);
--color-50: #F3FBFC;
--color-100: #DFF3F6;
--color-200: #C0E6EC;
--color-300: #95D0DA;
--color-400: #6CB8C6;
--color-500: #4B9CAA;
--color-600: #3F7883;
--color-700: #32575D;
--color-800: #233A3D;
--color-900: #172426;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
lagoon-blue: {
50: '#F3FBFC',
100: '#DFF3F6',
200: '#C0E6EC',
300: '#95D0DA',
400: '#6CB8C6',
500: '#4B9CAA',
600: '#3F7883',
700: '#32575D',
800: '#233A3D',
900: '#172426',
},
}
$base: #5BBDCE; $base-ink: #141310; $base-50: #F3FBFC; $base-100: #DFF3F6; $base-200: #C0E6EC; $base-300: #95D0DA; $base-400: #6CB8C6; $base-500: #4B9CAA; $base-600: #3F7883; $base-700: #32575D; $base-800: #233A3D; $base-900: #172426; $base-hover: #36A3B6; $base-subtle: #D2E8EC;
{
"color": {
"base": {
"value": "#5BBDCE",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FBFC",
"type": "color"
},
"100": {
"value": "#DFF3F6",
"type": "color"
},
"200": {
"value": "#C0E6EC",
"type": "color"
},
"300": {
"value": "#95D0DA",
"type": "color"
},
"400": {
"value": "#6CB8C6",
"type": "color"
},
"500": {
"value": "#4B9CAA",
"type": "color"
},
"600": {
"value": "#3F7883",
"type": "color"
},
"700": {
"value": "#32575D",
"type": "color"
},
"800": {
"value": "#233A3D",
"type": "color"
},
"900": {
"value": "#172426",
"type": "color"
}
}
}
}