#175441 is a mid-toned, cool teal. On the Color Lab it reads quietly premium, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #175441 works with other colors. Named schemes with #175441 in its natural role, and a note on why the supporting colors balance it.
Castleton Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Castleton Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
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 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 #175441 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 #175441 at work across the surfaces designers actually ship.
:root {
--color-base: #175441;
--color-base-rgb: 23 84 65;
--color-base-oklch: oklch(40.2% 0.070 168.3);
--color-50: #F3FCF9;
--color-100: #DEF7EF;
--color-200: #BFEDDF;
--color-300: #93DCC5;
--color-400: #6AC8AA;
--color-500: #48AD8D;
--color-600: #3D846E;
--color-700: #305E50;
--color-800: #233E35;
--color-900: #172621;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F3FCF9',
100: '#DEF7EF',
200: '#BFEDDF',
300: '#93DCC5',
400: '#6AC8AA',
500: '#48AD8D',
600: '#3D846E',
700: '#305E50',
800: '#233E35',
900: '#172621',
},
}
$base: #175441; $base-ink: #FFFFFF; $base-50: #F3FCF9; $base-100: #DEF7EF; $base-200: #BFEDDF; $base-300: #93DCC5; $base-400: #6AC8AA; $base-500: #48AD8D; $base-600: #3D846E; $base-700: #305E50; $base-800: #233E35; $base-900: #172621; $base-hover: #124334; $base-subtle: #A8DDCC;
{
"color": {
"base": {
"value": "#175441",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FCF9",
"type": "color"
},
"100": {
"value": "#DEF7EF",
"type": "color"
},
"200": {
"value": "#BFEDDF",
"type": "color"
},
"300": {
"value": "#93DCC5",
"type": "color"
},
"400": {
"value": "#6AC8AA",
"type": "color"
},
"500": {
"value": "#48AD8D",
"type": "color"
},
"600": {
"value": "#3D846E",
"type": "color"
},
"700": {
"value": "#305E50",
"type": "color"
},
"800": {
"value": "#233E35",
"type": "color"
},
"900": {
"value": "#172621",
"type": "color"
}
}
}
}