#399E4E is a mid-toned, temperate teal-green. On the Color Lab it reads organic and grounded. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #399E4E works with other colors. Named schemes with #399E4E in its natural role, and a note on why the supporting colors balance it.
Shamrock Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Shamrock Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Shamrock Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
This palette keeps Shamrock Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.
Shamrock 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 Shamrock Green carrying the quiet middle.
How #399E4E 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 #399E4E at work across the surfaces designers actually ship.
:root {
--color-base: #399E4E;
--color-base-rgb: 57 158 78;
--color-base-oklch: oklch(62.1% 0.150 147.5);
--color-50: #F3FBF5;
--color-100: #E0F5E5;
--color-200: #C3E9CB;
--color-300: #99D6A5;
--color-400: #72C082;
--color-500: #51A462;
--color-600: #447E4F;
--color-700: #345A3C;
--color-800: #253C2A;
--color-900: #18251B;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
shamrock-green: {
50: '#F3FBF5',
100: '#E0F5E5',
200: '#C3E9CB',
300: '#99D6A5',
400: '#72C082',
500: '#51A462',
600: '#447E4F',
700: '#345A3C',
800: '#253C2A',
900: '#18251B',
},
}
$base: #399E4E; $base-ink: #141310; $base-50: #F3FBF5; $base-100: #E0F5E5; $base-200: #C3E9CB; $base-300: #99D6A5; $base-400: #72C082; $base-500: #51A462; $base-600: #447E4F; $base-700: #345A3C; $base-800: #253C2A; $base-900: #18251B; $base-hover: #2D7E3E; $base-subtle: #C3E2C9;
{
"color": {
"base": {
"value": "#399E4E",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FBF5",
"type": "color"
},
"100": {
"value": "#E0F5E5",
"type": "color"
},
"200": {
"value": "#C3E9CB",
"type": "color"
},
"300": {
"value": "#99D6A5",
"type": "color"
},
"400": {
"value": "#72C082",
"type": "color"
},
"500": {
"value": "#51A462",
"type": "color"
},
"600": {
"value": "#447E4F",
"type": "color"
},
"700": {
"value": "#345A3C",
"type": "color"
},
"800": {
"value": "#253C2A",
"type": "color"
},
"900": {
"value": "#18251B",
"type": "color"
}
}
}
}