#28CDC8 is a mid-toned, cool cyan. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #28CDC8 works with other colors. Named schemes with #28CDC8 in its natural role, and a note on why the supporting colors balance it.
Robin Egg Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Robin Egg Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Robin Egg 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 Robin Egg Blue carrying the quiet middle.
Robin Egg 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 Robin Egg Blue.
Robin Egg 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 #28CDC8 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 #28CDC8 at work across the surfaces designers actually ship.
:root {
--color-base: #28CDC8;
--color-base-rgb: 40 205 200;
--color-base-oklch: oklch(76.9% 0.126 191.6);
--color-50: #F2FDFD;
--color-100: #DCF9F8;
--color-200: #BBF1F0;
--color-300: #8CE3E0;
--color-400: #62D0CD;
--color-500: #3FB5B1;
--color-600: #378B88;
--color-700: #2C6261;
--color-800: #20413F;
--color-900: #162827;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
robin-egg-blue: {
50: '#F2FDFD',
100: '#DCF9F8',
200: '#BBF1F0',
300: '#8CE3E0',
400: '#62D0CD',
500: '#3FB5B1',
600: '#378B88',
700: '#2C6261',
800: '#20413F',
900: '#162827',
},
}
$base: #28CDC8; $base-ink: #141310; $base-50: #F2FDFD; $base-100: #DCF9F8; $base-200: #BBF1F0; $base-300: #8CE3E0; $base-400: #62D0CD; $base-500: #3FB5B1; $base-600: #378B88; $base-700: #2C6261; $base-800: #20413F; $base-900: #162827; $base-hover: #20A49F; $base-subtle: #C3EBEA;
{
"color": {
"base": {
"value": "#28CDC8",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FDFD",
"type": "color"
},
"100": {
"value": "#DCF9F8",
"type": "color"
},
"200": {
"value": "#BBF1F0",
"type": "color"
},
"300": {
"value": "#8CE3E0",
"type": "color"
},
"400": {
"value": "#62D0CD",
"type": "color"
},
"500": {
"value": "#3FB5B1",
"type": "color"
},
"600": {
"value": "#378B88",
"type": "color"
},
"700": {
"value": "#2C6261",
"type": "color"
},
"800": {
"value": "#20413F",
"type": "color"
},
"900": {
"value": "#162827",
"type": "color"
}
}
}
}