#439299 is a mid-toned, cool cyan-blue. 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 #439299 works with other colors. Named schemes with #439299 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 is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Dark Cyan.
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 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 #439299 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 #439299 at work across the surfaces designers actually ship.
:root {
--color-base: #439299;
--color-base-rgb: 67 146 153;
--color-base-oklch: oklch(61.3% 0.078 203.2);
--color-50: #F4FAFB;
--color-100: #E2F2F3;
--color-200: #C6E3E6;
--color-300: #9ECDD1;
--color-400: #79B4B9;
--color-500: #58979D;
--color-600: #497579;
--color-700: #385557;
--color-800: #27383A;
--color-900: #192324;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
dark-cyan: {
50: '#F4FAFB',
100: '#E2F2F3',
200: '#C6E3E6',
300: '#9ECDD1',
400: '#79B4B9',
500: '#58979D',
600: '#497579',
700: '#385557',
800: '#27383A',
900: '#192324',
},
}
$base: #439299; $base-ink: #141310; $base-50: #F4FAFB; $base-100: #E2F2F3; $base-200: #C6E3E6; $base-300: #9ECDD1; $base-400: #79B4B9; $base-500: #58979D; $base-600: #497579; $base-700: #385557; $base-800: #27383A; $base-900: #192324; $base-hover: #36747A; $base-subtle: #C6DEE0;
{
"color": {
"base": {
"value": "#439299",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FAFB",
"type": "color"
},
"100": {
"value": "#E2F2F3",
"type": "color"
},
"200": {
"value": "#C6E3E6",
"type": "color"
},
"300": {
"value": "#9ECDD1",
"type": "color"
},
"400": {
"value": "#79B4B9",
"type": "color"
},
"500": {
"value": "#58979D",
"type": "color"
},
"600": {
"value": "#497579",
"type": "color"
},
"700": {
"value": "#385557",
"type": "color"
},
"800": {
"value": "#27383A",
"type": "color"
},
"900": {
"value": "#192324",
"type": "color"
}
}
}
}