#428484 is a mid-toned, cool cyan. On the Color Lab it reads clean and engineered, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #428484 works with other colors. Named schemes with #428484 in its natural role, and a note on why the supporting colors balance it.
Dark Cyan opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Cyan keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Dark Cyan plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Dark Cyan 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.
Dark Cyan 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 Dark Cyan carrying the quiet middle.
How #428484 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 #428484 at work across the surfaces designers actually ship.
:root {
--color-base: #428484;
--color-base-rgb: 66 132 132;
--color-base-oklch: oklch(57.0% 0.067 195.4);
--color-50: #F5FAFA;
--color-100: #E3F2F2;
--color-200: #C9E4E4;
--color-300: #A2CDCD;
--color-400: #7EB4B4;
--color-500: #5D9797;
--color-600: #4C7575;
--color-700: #3A5555;
--color-800: #293838;
--color-900: #1A2323;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
dark-cyan: {
50: '#F5FAFA',
100: '#E3F2F2',
200: '#C9E4E4',
300: '#A2CDCD',
400: '#7EB4B4',
500: '#5D9797',
600: '#4C7575',
700: '#3A5555',
800: '#293838',
900: '#1A2323',
},
}
$base: #428484; $base-ink: #141310; $base-50: #F5FAFA; $base-100: #E3F2F2; $base-200: #C9E4E4; $base-300: #A2CDCD; $base-400: #7EB4B4; $base-500: #5D9797; $base-600: #4C7575; $base-700: #3A5555; $base-800: #293838; $base-900: #1A2323; $base-hover: #356A6A; $base-subtle: #C5DCDC;
{
"color": {
"base": {
"value": "#428484",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5FAFA",
"type": "color"
},
"100": {
"value": "#E3F2F2",
"type": "color"
},
"200": {
"value": "#C9E4E4",
"type": "color"
},
"300": {
"value": "#A2CDCD",
"type": "color"
},
"400": {
"value": "#7EB4B4",
"type": "color"
},
"500": {
"value": "#5D9797",
"type": "color"
},
"600": {
"value": "#4C7575",
"type": "color"
},
"700": {
"value": "#3A5555",
"type": "color"
},
"800": {
"value": "#293838",
"type": "color"
},
"900": {
"value": "#1A2323",
"type": "color"
}
}
}
}