#399855 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 #399855 works with other colors. Named schemes with #399855 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 plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Shamrock Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
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 #399855 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 #399855 at work across the surfaces designers actually ship.
:root {
--color-base: #399855;
--color-base-rgb: 57 152 85;
--color-base-oklch: oklch(60.7% 0.134 150.1);
--color-50: #F4FBF6;
--color-100: #E1F4E7;
--color-200: #C4E8CF;
--color-300: #9BD5AC;
--color-400: #74BE8A;
--color-500: #53A26B;
--color-600: #457D56;
--color-700: #355A40;
--color-800: #263B2C;
--color-900: #19251C;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
shamrock-green: {
50: '#F4FBF6',
100: '#E1F4E7',
200: '#C4E8CF',
300: '#9BD5AC',
400: '#74BE8A',
500: '#53A26B',
600: '#457D56',
700: '#355A40',
800: '#263B2C',
900: '#19251C',
},
}
$base: #399855; $base-ink: #141310; $base-50: #F4FBF6; $base-100: #E1F4E7; $base-200: #C4E8CF; $base-300: #9BD5AC; $base-400: #74BE8A; $base-500: #53A26B; $base-600: #457D56; $base-700: #355A40; $base-800: #263B2C; $base-900: #19251C; $base-hover: #2E7945; $base-subtle: #C2E1CC;
{
"color": {
"base": {
"value": "#399855",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FBF6",
"type": "color"
},
"100": {
"value": "#E1F4E7",
"type": "color"
},
"200": {
"value": "#C4E8CF",
"type": "color"
},
"300": {
"value": "#9BD5AC",
"type": "color"
},
"400": {
"value": "#74BE8A",
"type": "color"
},
"500": {
"value": "#53A26B",
"type": "color"
},
"600": {
"value": "#457D56",
"type": "color"
},
"700": {
"value": "#355A40",
"type": "color"
},
"800": {
"value": "#263B2C",
"type": "color"
},
"900": {
"value": "#19251C",
"type": "color"
}
}
}
}