#175C27 is a mid-toned, temperate teal-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 #175C27 works with other colors. Named schemes with #175C27 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 #175C27 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 #175C27 at work across the surfaces designers actually ship.
:root {
--color-base: #175C27;
--color-base-rgb: 23 92 39;
--color-base-oklch: oklch(41.9% 0.108 147.4);
--color-50: #F2FCF5;
--color-100: #DEF8E4;
--color-200: #BEEFC9;
--color-300: #91DEA3;
--color-400: #67CB7F;
--color-500: #46AF5E;
--color-600: #3C864D;
--color-700: #2F603A;
--color-800: #223F29;
--color-900: #16271A;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F2FCF5',
100: '#DEF8E4',
200: '#BEEFC9',
300: '#91DEA3',
400: '#67CB7F',
500: '#46AF5E',
600: '#3C864D',
700: '#2F603A',
800: '#223F29',
900: '#16271A',
},
}
$base: #175C27; $base-ink: #FFFFFF; $base-50: #F2FCF5; $base-100: #DEF8E4; $base-200: #BEEFC9; $base-300: #91DEA3; $base-400: #67CB7F; $base-500: #46AF5E; $base-600: #3C864D; $base-700: #2F603A; $base-800: #223F29; $base-900: #16271A; $base-hover: #134B20; $base-subtle: #A9DFB6;
{
"color": {
"base": {
"value": "#175C27",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCF5",
"type": "color"
},
"100": {
"value": "#DEF8E4",
"type": "color"
},
"200": {
"value": "#BEEFC9",
"type": "color"
},
"300": {
"value": "#91DEA3",
"type": "color"
},
"400": {
"value": "#67CB7F",
"type": "color"
},
"500": {
"value": "#46AF5E",
"type": "color"
},
"600": {
"value": "#3C864D",
"type": "color"
},
"700": {
"value": "#2F603A",
"type": "color"
},
"800": {
"value": "#223F29",
"type": "color"
},
"900": {
"value": "#16271A",
"type": "color"
}
}
}
}