#24581B 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 #24581B works with other colors. Named schemes with #24581B 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 #24581B 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 #24581B at work across the surfaces designers actually ship.
:root {
--color-base: #24581B;
--color-base-rgb: 36 88 27;
--color-base-oklch: oklch(41.0% 0.108 140.9);
--color-50: #F4FCF3;
--color-100: #E3F6DF;
--color-200: #C7ECC1;
--color-300: #A0DA95;
--color-400: #7AC56D;
--color-500: #5AA94C;
--color-600: #4A8240;
--color-700: #385D32;
--color-800: #283D24;
--color-900: #1A2617;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F4FCF3',
100: '#E3F6DF',
200: '#C7ECC1',
300: '#A0DA95',
400: '#7AC56D',
500: '#5AA94C',
600: '#4A8240',
700: '#385D32',
800: '#283D24',
900: '#1A2617',
},
}
$base: #24581B; $base-ink: #FFFFFF; $base-50: #F4FCF3; $base-100: #E3F6DF; $base-200: #C7ECC1; $base-300: #A0DA95; $base-400: #7AC56D; $base-500: #5AA94C; $base-600: #4A8240; $base-700: #385D32; $base-800: #283D24; $base-900: #1A2617; $base-hover: #1E4816; $base-subtle: #B3DCAC;
{
"color": {
"base": {
"value": "#24581B",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FCF3",
"type": "color"
},
"100": {
"value": "#E3F6DF",
"type": "color"
},
"200": {
"value": "#C7ECC1",
"type": "color"
},
"300": {
"value": "#A0DA95",
"type": "color"
},
"400": {
"value": "#7AC56D",
"type": "color"
},
"500": {
"value": "#5AA94C",
"type": "color"
},
"600": {
"value": "#4A8240",
"type": "color"
},
"700": {
"value": "#385D32",
"type": "color"
},
"800": {
"value": "#283D24",
"type": "color"
},
"900": {
"value": "#1A2617",
"type": "color"
}
}
}
}