#17520A 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 #17520A works with other colors. Named schemes with #17520A 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 #17520A 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 #17520A at work across the surfaces designers actually ship.
:root {
--color-base: #17520A;
--color-base-rgb: 23 82 10;
--color-base-oklch: oklch(38.6% 0.117 140.7);
--color-50: #F3FEF1;
--color-100: #E0FBDA;
--color-200: #C2F6B6;
--color-300: #98EA85;
--color-400: #70DA58;
--color-500: #4FBF36;
--color-600: #429130;
--color-700: #336728;
--color-800: #25431E;
--color-900: #182914;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F3FEF1',
100: '#E0FBDA',
200: '#C2F6B6',
300: '#98EA85',
400: '#70DA58',
500: '#4FBF36',
600: '#429130',
700: '#336728',
800: '#25431E',
900: '#182914',
},
}
$base: #17520A; $base-ink: #FFFFFF; $base-50: #F3FEF1; $base-100: #E0FBDA; $base-200: #C2F6B6; $base-300: #98EA85; $base-400: #70DA58; $base-500: #4FBF36; $base-600: #429130; $base-700: #336728; $base-800: #25431E; $base-900: #182914; $base-hover: #134108; $base-subtle: #A9E59B;
{
"color": {
"base": {
"value": "#17520A",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FEF1",
"type": "color"
},
"100": {
"value": "#E0FBDA",
"type": "color"
},
"200": {
"value": "#C2F6B6",
"type": "color"
},
"300": {
"value": "#98EA85",
"type": "color"
},
"400": {
"value": "#70DA58",
"type": "color"
},
"500": {
"value": "#4FBF36",
"type": "color"
},
"600": {
"value": "#429130",
"type": "color"
},
"700": {
"value": "#336728",
"type": "color"
},
"800": {
"value": "#25431E",
"type": "color"
},
"900": {
"value": "#182914",
"type": "color"
}
}
}
}