#0A4E12 is a deep, 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 #0A4E12 works with other colors. Named schemes with #0A4E12 in its natural role, and a note on why the supporting colors balance it.
Castleton Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.
Castleton Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Castleton Green adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Castleton Green.
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 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 #0A4E12 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 #0A4E12 at work across the surfaces designers actually ship.
:root {
--color-base: #0A4E12;
--color-base-rgb: 10 78 18;
--color-base-oklch: oklch(37.1% 0.112 144.3);
--color-50: #F1FEF2;
--color-100: #DAFBDE;
--color-200: #B7F5BE;
--color-300: #86E992;
--color-400: #59D968;
--color-500: #37BE46;
--color-600: #31913C;
--color-700: #286630;
--color-800: #1E4322;
--color-900: #142917;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F1FEF2',
100: '#DAFBDE',
200: '#B7F5BE',
300: '#86E992',
400: '#59D968',
500: '#37BE46',
600: '#31913C',
700: '#286630',
800: '#1E4322',
900: '#142917',
},
}
$base: #0A4E12; $base-ink: #FFFFFF; $base-50: #F1FEF2; $base-100: #DAFBDE; $base-200: #B7F5BE; $base-300: #86E992; $base-400: #59D968; $base-500: #37BE46; $base-600: #31913C; $base-700: #286630; $base-800: #1E4322; $base-900: #142917; $base-hover: #083D0E; $base-subtle: #9AE5A3;
{
"color": {
"base": {
"value": "#0A4E12",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEF2",
"type": "color"
},
"100": {
"value": "#DAFBDE",
"type": "color"
},
"200": {
"value": "#B7F5BE",
"type": "color"
},
"300": {
"value": "#86E992",
"type": "color"
},
"400": {
"value": "#59D968",
"type": "color"
},
"500": {
"value": "#37BE46",
"type": "color"
},
"600": {
"value": "#31913C",
"type": "color"
},
"700": {
"value": "#286630",
"type": "color"
},
"800": {
"value": "#1E4322",
"type": "color"
},
"900": {
"value": "#142917",
"type": "color"
}
}
}
}