#393138 is a mid neutral with only a whisper of temperate cast. On the Color Lab it reads clean and engineered, quietly premium. It is too muted to lead as a primary accent and reproduces cleanly in print.
Not just a swatch — here's how #393138 works with other colors. Named schemes with #393138 in its natural role, and a note on why the supporting colors balance it.
Onyx is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Onyx.
Onyx plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Onyx sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.
Onyx sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Onyx 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 Onyx carrying the quiet middle.
How #393138 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 #393138 at work across the surfaces designers actually ship.
:root {
--color-base: #393138;
--color-base-rgb: 57 49 56;
--color-base-oklch: oklch(32.4% 0.016 330.0);
--color-50: #F8F7F8;
--color-100: #ECE9EC;
--color-200: #D9D3D9;
--color-300: #BDB2BB;
--color-400: #A0929E;
--color-500: #817380;
--color-600: #665C65;
--color-700: #4B444A;
--color-800: #322F32;
--color-900: #201D1F;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
onyx: {
50: '#F8F7F8',
100: '#ECE9EC',
200: '#D9D3D9',
300: '#BDB2BB',
400: '#A0929E',
500: '#817380',
600: '#665C65',
700: '#4B444A',
800: '#322F32',
900: '#201D1F',
},
}
$base: #393138; $base-ink: #FFFFFF; $base-50: #F8F7F8; $base-100: #ECE9EC; $base-200: #D9D3D9; $base-300: #BDB2BB; $base-400: #A0929E; $base-500: #817380; $base-600: #665C65; $base-700: #4B444A; $base-800: #322F32; $base-900: #201D1F; $base-hover: #2E272D; $base-subtle: #C6BFC5;
{
"color": {
"base": {
"value": "#393138",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F8F7F8",
"type": "color"
},
"100": {
"value": "#ECE9EC",
"type": "color"
},
"200": {
"value": "#D9D3D9",
"type": "color"
},
"300": {
"value": "#BDB2BB",
"type": "color"
},
"400": {
"value": "#A0929E",
"type": "color"
},
"500": {
"value": "#817380",
"type": "color"
},
"600": {
"value": "#665C65",
"type": "color"
},
"700": {
"value": "#4B444A",
"type": "color"
},
"800": {
"value": "#322F32",
"type": "color"
},
"900": {
"value": "#201D1F",
"type": "color"
}
}
}
}