#3A372C is a mid neutral with only a whisper of temperate cast. On the Color Lab it reads quietly premium, restrained and easy to live with. It is too muted to lead as a primary accent and reproduces cleanly in print.
Not just a swatch — here's how #3A372C works with other colors. Named schemes with #3A372C 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 carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.
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 #3A372C 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 #3A372C at work across the surfaces designers actually ship.
:root {
--color-base: #3A372C;
--color-base-rgb: 58 55 44;
--color-base-oklch: oklch(33.6% 0.019 94.5);
--color-50: #F9F8F6;
--color-100: #EEECE8;
--color-200: #DCD9D1;
--color-300: #C1BDAF;
--color-400: #A5A08D;
--color-500: #87816E;
--color-600: #6A6658;
--color-700: #4D4B42;
--color-800: #34322D;
--color-900: #20201D;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
onyx: {
50: '#F9F8F6',
100: '#EEECE8',
200: '#DCD9D1',
300: '#C1BDAF',
400: '#A5A08D',
500: '#87816E',
600: '#6A6658',
700: '#4D4B42',
800: '#34322D',
900: '#20201D',
},
}
$base: #3A372C; $base-ink: #FFFFFF; $base-50: #F9F8F6; $base-100: #EEECE8; $base-200: #DCD9D1; $base-300: #C1BDAF; $base-400: #A5A08D; $base-500: #87816E; $base-600: #6A6658; $base-700: #4D4B42; $base-800: #34322D; $base-900: #20201D; $base-hover: #2F2C23; $base-subtle: #C8C5BB;
{
"color": {
"base": {
"value": "#3A372C",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F9F8F6",
"type": "color"
},
"100": {
"value": "#EEECE8",
"type": "color"
},
"200": {
"value": "#DCD9D1",
"type": "color"
},
"300": {
"value": "#C1BDAF",
"type": "color"
},
"400": {
"value": "#A5A08D",
"type": "color"
},
"500": {
"value": "#87816E",
"type": "color"
},
"600": {
"value": "#6A6658",
"type": "color"
},
"700": {
"value": "#4D4B42",
"type": "color"
},
"800": {
"value": "#34322D",
"type": "color"
},
"900": {
"value": "#20201D",
"type": "color"
}
}
}
}