#239D9B is a mid-toned, cool cyan. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #239D9B works with other colors. Named schemes with #239D9B in its natural role, and a note on why the supporting colors balance it.
Persian Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Persian Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Persian Green 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 Persian Green carrying the quiet middle.
Persian Green is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Persian Green.
Persian Green 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 #239D9B 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 #239D9B at work across the surfaces designers actually ship.
:root {
--color-base: #239D9B;
--color-base-rgb: 35 157 155;
--color-base-oklch: oklch(63.3% 0.101 193.2);
--color-50: #F2FDFD;
--color-100: #DDF8F8;
--color-200: #BCF0EF;
--color-300: #8EE1E0;
--color-400: #64CECC;
--color-500: #42B3B1;
--color-600: #398987;
--color-700: #2E6160;
--color-800: #21403F;
--color-900: #162727;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
persian-green: {
50: '#F2FDFD',
100: '#DDF8F8',
200: '#BCF0EF',
300: '#8EE1E0',
400: '#64CECC',
500: '#42B3B1',
600: '#398987',
700: '#2E6160',
800: '#21403F',
900: '#162727',
},
}
$base: #239D9B; $base-ink: #141310; $base-50: #F2FDFD; $base-100: #DDF8F8; $base-200: #BCF0EF; $base-300: #8EE1E0; $base-400: #64CECC; $base-500: #42B3B1; $base-600: #398987; $base-700: #2E6160; $base-800: #21403F; $base-900: #162727; $base-hover: #1C7F7D; $base-subtle: #B9E7E6;
{
"color": {
"base": {
"value": "#239D9B",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FDFD",
"type": "color"
},
"100": {
"value": "#DDF8F8",
"type": "color"
},
"200": {
"value": "#BCF0EF",
"type": "color"
},
"300": {
"value": "#8EE1E0",
"type": "color"
},
"400": {
"value": "#64CECC",
"type": "color"
},
"500": {
"value": "#42B3B1",
"type": "color"
},
"600": {
"value": "#398987",
"type": "color"
},
"700": {
"value": "#2E6160",
"type": "color"
},
"800": {
"value": "#21403F",
"type": "color"
},
"900": {
"value": "#162727",
"type": "color"
}
}
}
}