#577B31 is a mid-toned, temperate green. On the Color Lab it reads organic and grounded, with a faded, vintage edge. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #577B31 works with other colors. Named schemes with #577B31 in its natural role, and a note on why the supporting colors balance it.
Fern Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Fern 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.
Fern Green anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
Fern Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Fern 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 Fern Green carrying the quiet middle.
How #577B31 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 #577B31 at work across the surfaces designers actually ship.
:root {
--color-base: #577B31;
--color-base-rgb: 87 123 49;
--color-base-oklch: oklch(53.9% 0.111 131.0);
--color-50: #F7FBF4;
--color-100: #EBF4E1;
--color-200: #D7E8C5;
--color-300: #B9D39C;
--color-400: #9ABD75;
--color-500: #7CA055;
--color-600: #627C46;
--color-700: #485936;
--color-800: #313B26;
--color-900: #1F2419;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
fern-green: {
50: '#F7FBF4',
100: '#EBF4E1',
200: '#D7E8C5',
300: '#B9D39C',
400: '#9ABD75',
500: '#7CA055',
600: '#627C46',
700: '#485936',
800: '#313B26',
900: '#1F2419',
},
}
$base: #577B31; $base-ink: #FFFFFF; $base-50: #F7FBF4; $base-100: #EBF4E1; $base-200: #D7E8C5; $base-300: #B9D39C; $base-400: #9ABD75; $base-500: #7CA055; $base-600: #627C46; $base-700: #485936; $base-800: #313B26; $base-900: #1F2419; $base-hover: #466328; $base-subtle: #CDDDBC;
{
"color": {
"base": {
"value": "#577B31",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F7FBF4",
"type": "color"
},
"100": {
"value": "#EBF4E1",
"type": "color"
},
"200": {
"value": "#D7E8C5",
"type": "color"
},
"300": {
"value": "#B9D39C",
"type": "color"
},
"400": {
"value": "#9ABD75",
"type": "color"
},
"500": {
"value": "#7CA055",
"type": "color"
},
"600": {
"value": "#627C46",
"type": "color"
},
"700": {
"value": "#485936",
"type": "color"
},
"800": {
"value": "#313B26",
"type": "color"
},
"900": {
"value": "#1F2419",
"type": "color"
}
}
}
}