#5BCFEC is a soft, cool blue. On the Color Lab it reads clean and engineered. It is too pale to lead as a primary accent and sits well as a supporting tone.
Not just a swatch — here's how #5BCFEC works with other colors. Named schemes with #5BCFEC in its natural role, and a note on why the supporting colors balance it.
Bright Sky opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Bright Sky keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Bright Sky is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Bright Sky.
Bright Sky 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 Bright Sky carrying the quiet middle.
Bright Sky 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 #5BCFEC 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 #5BCFEC at work across the surfaces designers actually ship.
:root {
--color-base: #5BCFEC;
--color-base-rgb: 91 207 236;
--color-base-oklch: oklch(79.9% 0.111 217.0);
--color-50: #F1FBFE;
--color-100: #DAF5FC;
--color-200: #B6E9F6;
--color-300: #85D6EB;
--color-400: #58C0DA;
--color-500: #35A4C0;
--color-600: #307E92;
--color-700: #285B67;
--color-800: #1D3C43;
--color-900: #142529;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
bright-sky: {
50: '#F1FBFE',
100: '#DAF5FC',
200: '#B6E9F6',
300: '#85D6EB',
400: '#58C0DA',
500: '#35A4C0',
600: '#307E92',
700: '#285B67',
800: '#1D3C43',
900: '#142529',
},
}
$base: #5BCFEC; $base-ink: #141310; $base-50: #F1FBFE; $base-100: #DAF5FC; $base-200: #B6E9F6; $base-300: #85D6EB; $base-400: #58C0DA; $base-500: #35A4C0; $base-600: #307E92; $base-700: #285B67; $base-800: #1D3C43; $base-900: #142529; $base-hover: #20BEE5; $base-subtle: #D3EDF4;
{
"color": {
"base": {
"value": "#5BCFEC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FBFE",
"type": "color"
},
"100": {
"value": "#DAF5FC",
"type": "color"
},
"200": {
"value": "#B6E9F6",
"type": "color"
},
"300": {
"value": "#85D6EB",
"type": "color"
},
"400": {
"value": "#58C0DA",
"type": "color"
},
"500": {
"value": "#35A4C0",
"type": "color"
},
"600": {
"value": "#307E92",
"type": "color"
},
"700": {
"value": "#285B67",
"type": "color"
},
"800": {
"value": "#1D3C43",
"type": "color"
},
"900": {
"value": "#142529",
"type": "color"
}
}
}
}