#175753 is a mid-toned, cool cyan. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #175753 works with other colors. Named schemes with #175753 in its natural role, and a note on why the supporting colors balance it.
Dark Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Dark Slate Gray plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Dark Slate Gray 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.
Dark Slate Gray 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 Dark Slate Gray carrying the quiet middle.
How #175753 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 #175753 at work across the surfaces designers actually ship.
:root {
--color-base: #175753;
--color-base-rgb: 23 87 83;
--color-base-oklch: oklch(41.6% 0.063 189.0);
--color-50: #F2FCFC;
--color-100: #DEF7F5;
--color-200: #BFEEEB;
--color-300: #92DDD8;
--color-400: #69C9C3;
--color-500: #47ADA7;
--color-600: #3D8580;
--color-700: #305F5C;
--color-800: #233E3D;
--color-900: #172625;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F2FCFC',
100: '#DEF7F5',
200: '#BFEEEB',
300: '#92DDD8',
400: '#69C9C3',
500: '#47ADA7',
600: '#3D8580',
700: '#305F5C',
800: '#233E3D',
900: '#172625',
},
}
$base: #175753; $base-ink: #FFFFFF; $base-50: #F2FCFC; $base-100: #DEF7F5; $base-200: #BFEEEB; $base-300: #92DDD8; $base-400: #69C9C3; $base-500: #47ADA7; $base-600: #3D8580; $base-700: #305F5C; $base-800: #233E3D; $base-900: #172625; $base-hover: #134743; $base-subtle: #A9DEDA;
{
"color": {
"base": {
"value": "#175753",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFC",
"type": "color"
},
"100": {
"value": "#DEF7F5",
"type": "color"
},
"200": {
"value": "#BFEEEB",
"type": "color"
},
"300": {
"value": "#92DDD8",
"type": "color"
},
"400": {
"value": "#69C9C3",
"type": "color"
},
"500": {
"value": "#47ADA7",
"type": "color"
},
"600": {
"value": "#3D8580",
"type": "color"
},
"700": {
"value": "#305F5C",
"type": "color"
},
"800": {
"value": "#233E3D",
"type": "color"
},
"900": {
"value": "#172625",
"type": "color"
}
}
}
}