#397378 is a mid-toned, cool cyan-blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #397378 works with other colors. Named schemes with #397378 in its natural role, and a note on why the supporting colors balance it.
Myrtle Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Myrtle Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Myrtle 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 Myrtle Green.
Myrtle 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.
Myrtle 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 Myrtle Green carrying the quiet middle.
How #397378 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 #397378 at work across the surfaces designers actually ship.
:root {
--color-base: #397378;
--color-base-rgb: 57 115 120;
--color-base-oklch: oklch(51.9% 0.061 202.9);
--color-50: #F4FAFA;
--color-100: #E3F1F2;
--color-200: #C8E2E5;
--color-300: #A0CBCF;
--color-400: #7BB2B7;
--color-500: #5B959A;
--color-600: #4A7477;
--color-700: #395456;
--color-800: #283839;
--color-900: #1A2323;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
myrtle-green: {
50: '#F4FAFA',
100: '#E3F1F2',
200: '#C8E2E5',
300: '#A0CBCF',
400: '#7BB2B7',
500: '#5B959A',
600: '#4A7477',
700: '#395456',
800: '#283839',
900: '#1A2323',
},
}
$base: #397378; $base-ink: #FFFFFF; $base-50: #F4FAFA; $base-100: #E3F1F2; $base-200: #C8E2E5; $base-300: #A0CBCF; $base-400: #7BB2B7; $base-500: #5B959A; $base-600: #4A7477; $base-700: #395456; $base-800: #283839; $base-900: #1A2323; $base-hover: #2E5D61; $base-subtle: #C0D9DB;
{
"color": {
"base": {
"value": "#397378",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FAFA",
"type": "color"
},
"100": {
"value": "#E3F1F2",
"type": "color"
},
"200": {
"value": "#C8E2E5",
"type": "color"
},
"300": {
"value": "#A0CBCF",
"type": "color"
},
"400": {
"value": "#7BB2B7",
"type": "color"
},
"500": {
"value": "#5B959A",
"type": "color"
},
"600": {
"value": "#4A7477",
"type": "color"
},
"700": {
"value": "#395456",
"type": "color"
},
"800": {
"value": "#283839",
"type": "color"
},
"900": {
"value": "#1A2323",
"type": "color"
}
}
}
}