#124F09 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 #124F09 works with other colors. Named schemes with #124F09 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 #124F09 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 #124F09 at work across the surfaces designers actually ship.
:root {
--color-base: #124F09;
--color-base-rgb: 18 79 9;
--color-base-oklch: oklch(37.5% 0.116 141.4);
--color-50: #F2FEF1;
--color-100: #DEFCD9;
--color-200: #BEF7B6;
--color-300: #92EB84;
--color-400: #68DB57;
--color-500: #47C134;
--color-600: #3C932F;
--color-700: #306827;
--color-800: #22441D;
--color-900: #172914;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F2FEF1',
100: '#DEFCD9',
200: '#BEF7B6',
300: '#92EB84',
400: '#68DB57',
500: '#47C134',
600: '#3C932F',
700: '#306827',
800: '#22441D',
900: '#172914',
},
}
$base: #124F09; $base-ink: #FFFFFF; $base-50: #F2FEF1; $base-100: #DEFCD9; $base-200: #BEF7B6; $base-300: #92EB84; $base-400: #68DB57; $base-500: #47C134; $base-600: #3C932F; $base-700: #306827; $base-800: #22441D; $base-900: #172914; $base-hover: #0E3E07; $base-subtle: #A3E699;
{
"color": {
"base": {
"value": "#124F09",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FEF1",
"type": "color"
},
"100": {
"value": "#DEFCD9",
"type": "color"
},
"200": {
"value": "#BEF7B6",
"type": "color"
},
"300": {
"value": "#92EB84",
"type": "color"
},
"400": {
"value": "#68DB57",
"type": "color"
},
"500": {
"value": "#47C134",
"type": "color"
},
"600": {
"value": "#3C932F",
"type": "color"
},
"700": {
"value": "#306827",
"type": "color"
},
"800": {
"value": "#22441D",
"type": "color"
},
"900": {
"value": "#172914",
"type": "color"
}
}
}
}