#255012 is a mid-toned, temperate green. On the Color Lab it reads organic and grounded, quietly premium. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #255012 works with other colors. Named schemes with #255012 in its natural role, and a note on why the supporting colors balance it.
Castleton Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Castleton 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.
Castleton 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.
Castleton Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Castleton 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 Castleton Green carrying the quiet middle.
How #255012 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 #255012 at work across the surfaces designers actually ship.
:root {
--color-base: #255012;
--color-base-rgb: 37 80 18;
--color-base-oklch: oklch(38.6% 0.103 137.8);
--color-50: #F5FDF2;
--color-100: #E5F8DD;
--color-200: #CCF0BD;
--color-300: #A7E08F;
--color-400: #84CD65;
--color-500: #64B243;
--color-600: #51883A;
--color-700: #3D612E;
--color-800: #2A4021;
--color-900: #1B2716;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F5FDF2',
100: '#E5F8DD',
200: '#CCF0BD',
300: '#A7E08F',
400: '#84CD65',
500: '#64B243',
600: '#51883A',
700: '#3D612E',
800: '#2A4021',
900: '#1B2716',
},
}
$base: #255012; $base-ink: #FFFFFF; $base-50: #F5FDF2; $base-100: #E5F8DD; $base-200: #CCF0BD; $base-300: #A7E08F; $base-400: #84CD65; $base-500: #64B243; $base-600: #51883A; $base-700: #3D612E; $base-800: #2A4021; $base-900: #1B2716; $base-hover: #1D3F0E; $base-subtle: #B5DFA3;
{
"color": {
"base": {
"value": "#255012",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5FDF2",
"type": "color"
},
"100": {
"value": "#E5F8DD",
"type": "color"
},
"200": {
"value": "#CCF0BD",
"type": "color"
},
"300": {
"value": "#A7E08F",
"type": "color"
},
"400": {
"value": "#84CD65",
"type": "color"
},
"500": {
"value": "#64B243",
"type": "color"
},
"600": {
"value": "#51883A",
"type": "color"
},
"700": {
"value": "#3D612E",
"type": "color"
},
"800": {
"value": "#2A4021",
"type": "color"
},
"900": {
"value": "#1B2716",
"type": "color"
}
}
}
}