#4D5150 is a mid neutral with only a whisper of temperate cast. On the Color Lab it reads clean and engineered, restrained and easy to live with. It reproduces cleanly in print.
Not just a swatch — here's how #4D5150 works with other colors. Named schemes with #4D5150 in its natural role, and a note on why the supporting colors balance it.
Iron Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Iron Gray.
Iron 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.
Iron 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.
Iron Gray 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.
Iron 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 Iron Gray carrying the quiet middle.
How #4D5150 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 #4D5150 at work across the surfaces designers actually ship.
:root {
--color-base: #4D5150;
--color-base-rgb: 77 81 80;
--color-base-oklch: oklch(43.1% 0.005 179.5);
--color-50: #F7F8F8;
--color-100: #EAEBEB;
--color-200: #D5D8D7;
--color-300: #B5BAB9;
--color-400: #959D9B;
--color-500: #767F7D;
--color-600: #5D6563;
--color-700: #454A49;
--color-800: #2F3231;
--color-900: #1D201F;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
iron-gray: {
50: '#F7F8F8',
100: '#EAEBEB',
200: '#D5D8D7',
300: '#B5BAB9',
400: '#959D9B',
500: '#767F7D',
600: '#5D6563',
700: '#454A49',
800: '#2F3231',
900: '#1D201F',
},
}
$base: #4D5150; $base-ink: #FFFFFF; $base-50: #F7F8F8; $base-100: #EAEBEB; $base-200: #D5D8D7; $base-300: #B5BAB9; $base-400: #959D9B; $base-500: #767F7D; $base-600: #5D6563; $base-700: #454A49; $base-800: #2F3231; $base-900: #1D201F; $base-hover: #3D4140; $base-subtle: #C9CBCB;
{
"color": {
"base": {
"value": "#4D5150",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F7F8F8",
"type": "color"
},
"100": {
"value": "#EAEBEB",
"type": "color"
},
"200": {
"value": "#D5D8D7",
"type": "color"
},
"300": {
"value": "#B5BAB9",
"type": "color"
},
"400": {
"value": "#959D9B",
"type": "color"
},
"500": {
"value": "#767F7D",
"type": "color"
},
"600": {
"value": "#5D6563",
"type": "color"
},
"700": {
"value": "#454A49",
"type": "color"
},
"800": {
"value": "#2F3231",
"type": "color"
},
"900": {
"value": "#1D201F",
"type": "color"
}
}
}
}