#124E02 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 #124E02 works with other colors. Named schemes with #124E02 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 #124E02 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 #124E02 at work across the surfaces designers actually ship.
:root {
--color-base: #124E02;
--color-base-rgb: 18 78 2;
--color-base-oklch: oklch(37.1% 0.119 140.4);
--color-50: #F3FEF0;
--color-100: #E0FDD8;
--color-200: #C1FCB1;
--color-300: #95F57A;
--color-400: #6CE84A;
--color-500: #4BCE27;
--color-600: #3F9C26;
--color-700: #326E21;
--color-800: #24471A;
--color-900: #172B12;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F3FEF0',
100: '#E0FDD8',
200: '#C1FCB1',
300: '#95F57A',
400: '#6CE84A',
500: '#4BCE27',
600: '#3F9C26',
700: '#326E21',
800: '#24471A',
900: '#172B12',
},
}
$base: #124E02; $base-ink: #FFFFFF; $base-50: #F3FEF0; $base-100: #E0FDD8; $base-200: #C1FCB1; $base-300: #95F57A; $base-400: #6CE84A; $base-500: #4BCE27; $base-600: #3F9C26; $base-700: #326E21; $base-800: #24471A; $base-900: #172B12; $base-hover: #0F4002; $base-subtle: #A4ED90;
{
"color": {
"base": {
"value": "#124E02",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FEF0",
"type": "color"
},
"100": {
"value": "#E0FDD8",
"type": "color"
},
"200": {
"value": "#C1FCB1",
"type": "color"
},
"300": {
"value": "#95F57A",
"type": "color"
},
"400": {
"value": "#6CE84A",
"type": "color"
},
"500": {
"value": "#4BCE27",
"type": "color"
},
"600": {
"value": "#3F9C26",
"type": "color"
},
"700": {
"value": "#326E21",
"type": "color"
},
"800": {
"value": "#24471A",
"type": "color"
},
"900": {
"value": "#172B12",
"type": "color"
}
}
}
}