#166A73 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 #166A73 works with other colors. Named schemes with #166A73 in its natural role, and a note on why the supporting colors balance it.
Pine Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Pine Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Pine 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 Pine Green.
Pine Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Pine 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 Pine Green carrying the quiet middle.
How #166A73 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 #166A73 at work across the surfaces designers actually ship.
:root {
--color-base: #166A73;
--color-base-rgb: 22 106 115;
--color-base-oklch: oklch(48.1% 0.076 205.9);
--color-50: #F2FCFD;
--color-100: #DCF6F9;
--color-200: #BBECF2;
--color-300: #8CDBE3;
--color-400: #61C6D1;
--color-500: #3FAAB6;
--color-600: #37838B;
--color-700: #2C5D63;
--color-800: #203E41;
--color-900: #152628;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
pine-green: {
50: '#F2FCFD',
100: '#DCF6F9',
200: '#BBECF2',
300: '#8CDBE3',
400: '#61C6D1',
500: '#3FAAB6',
600: '#37838B',
700: '#2C5D63',
800: '#203E41',
900: '#152628',
},
}
$base: #166A73; $base-ink: #FFFFFF; $base-50: #F2FCFD; $base-100: #DCF6F9; $base-200: #BBECF2; $base-300: #8CDBE3; $base-400: #61C6D1; $base-500: #3FAAB6; $base-600: #37838B; $base-700: #2C5D63; $base-800: #203E41; $base-900: #152628; $base-hover: #12555D; $base-subtle: #AADEE4;
{
"color": {
"base": {
"value": "#166A73",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFD",
"type": "color"
},
"100": {
"value": "#DCF6F9",
"type": "color"
},
"200": {
"value": "#BBECF2",
"type": "color"
},
"300": {
"value": "#8CDBE3",
"type": "color"
},
"400": {
"value": "#61C6D1",
"type": "color"
},
"500": {
"value": "#3FAAB6",
"type": "color"
},
"600": {
"value": "#37838B",
"type": "color"
},
"700": {
"value": "#2C5D63",
"type": "color"
},
"800": {
"value": "#203E41",
"type": "color"
},
"900": {
"value": "#152628",
"type": "color"
}
}
}
}