#28540E 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 #28540E works with other colors. Named schemes with #28540E 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 #28540E 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 #28540E at work across the surfaces designers actually ship.
:root {
--color-base: #28540E;
--color-base-rgb: 40 84 14;
--color-base-oklch: oklch(39.9% 0.109 136.7);
--color-50: #F6FDF1;
--color-100: #E7FADB;
--color-200: #CFF3B9;
--color-300: #ABE58A;
--color-400: #89D45E;
--color-500: #6AB93C;
--color-600: #558D35;
--color-700: #40642B;
--color-800: #2C421F;
--color-900: #1C2815;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F6FDF1',
100: '#E7FADB',
200: '#CFF3B9',
300: '#ABE58A',
400: '#89D45E',
500: '#6AB93C',
600: '#558D35',
700: '#40642B',
800: '#2C421F',
900: '#1C2815',
},
}
$base: #28540E; $base-ink: #FFFFFF; $base-50: #F6FDF1; $base-100: #E7FADB; $base-200: #CFF3B9; $base-300: #ABE58A; $base-400: #89D45E; $base-500: #6AB93C; $base-600: #558D35; $base-700: #40642B; $base-800: #2C421F; $base-900: #1C2815; $base-hover: #1F420B; $base-subtle: #B8E2A0;
{
"color": {
"base": {
"value": "#28540E",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F6FDF1",
"type": "color"
},
"100": {
"value": "#E7FADB",
"type": "color"
},
"200": {
"value": "#CFF3B9",
"type": "color"
},
"300": {
"value": "#ABE58A",
"type": "color"
},
"400": {
"value": "#89D45E",
"type": "color"
},
"500": {
"value": "#6AB93C",
"type": "color"
},
"600": {
"value": "#558D35",
"type": "color"
},
"700": {
"value": "#40642B",
"type": "color"
},
"800": {
"value": "#2C421F",
"type": "color"
},
"900": {
"value": "#1C2815",
"type": "color"
}
}
}
}