#3A372A 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 #3A372A works with other colors. Named schemes with #3A372A in its natural role, and a note on why the supporting colors balance it.
Onyx leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
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 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 #3A372A 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 #3A372A at work across the surfaces designers actually ship.
:root {
--color-base: #3A372A;
--color-base-rgb: 58 55 42;
--color-base-oklch: oklch(33.6% 0.022 96.6);
--color-50: #F9F8F6;
--color-100: #EEEDE7;
--color-200: #DDDAD0;
--color-300: #C2BEAD;
--color-400: #A6A18C;
--color-500: #88836C;
--color-600: #6B6757;
--color-700: #4E4B41;
--color-800: #34332D;
--color-900: #21201C;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
onyx: {
50: '#F9F8F6',
100: '#EEEDE7',
200: '#DDDAD0',
300: '#C2BEAD',
400: '#A6A18C',
500: '#88836C',
600: '#6B6757',
700: '#4E4B41',
800: '#34332D',
900: '#21201C',
},
}
$base: #3A372A; $base-ink: #FFFFFF; $base-50: #F9F8F6; $base-100: #EEEDE7; $base-200: #DDDAD0; $base-300: #C2BEAD; $base-400: #A6A18C; $base-500: #88836C; $base-600: #6B6757; $base-700: #4E4B41; $base-800: #34332D; $base-900: #21201C; $base-hover: #2F2D22; $base-subtle: #C9C7BA;
{
"color": {
"base": {
"value": "#3A372A",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F9F8F6",
"type": "color"
},
"100": {
"value": "#EEEDE7",
"type": "color"
},
"200": {
"value": "#DDDAD0",
"type": "color"
},
"300": {
"value": "#C2BEAD",
"type": "color"
},
"400": {
"value": "#A6A18C",
"type": "color"
},
"500": {
"value": "#88836C",
"type": "color"
},
"600": {
"value": "#6B6757",
"type": "color"
},
"700": {
"value": "#4E4B41",
"type": "color"
},
"800": {
"value": "#34332D",
"type": "color"
},
"900": {
"value": "#21201C",
"type": "color"
}
}
}
}