#4C577A is a mid-toned, cool violet. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #4C577A works with other colors. Named schemes with #4C577A in its natural role, and a note on why the supporting colors balance it.
Ultra Violet opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Ultra Violet keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Ultra Violet is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Ultra Violet.
Ultra Violet plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Ultra Violet 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 Ultra Violet carrying the quiet middle.
How #4C577A 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 #4C577A at work across the surfaces designers actually ship.
:root {
--color-base: #4C577A;
--color-base-rgb: 76 87 122;
--color-base-oklch: oklch(46.2% 0.059 270.6);
--color-50: #F5F6F9;
--color-100: #E6E8F0;
--color-200: #CDD1E0;
--color-300: #A9B0C6;
--color-400: #868FAC;
--color-500: #66708F;
--color-600: #53596F;
--color-700: #3E4251;
--color-800: #2B2E36;
--color-900: #1B1D22;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
ultra-violet: {
50: '#F5F6F9',
100: '#E6E8F0',
200: '#CDD1E0',
300: '#A9B0C6',
400: '#868FAC',
500: '#66708F',
600: '#53596F',
700: '#3E4251',
800: '#2B2E36',
900: '#1B1D22',
},
}
$base: #4C577A; $base-ink: #FFFFFF; $base-50: #F5F6F9; $base-100: #E6E8F0; $base-200: #CDD1E0; $base-300: #A9B0C6; $base-400: #868FAC; $base-500: #66708F; $base-600: #53596F; $base-700: #3E4251; $base-800: #2B2E36; $base-900: #1B1D22; $base-hover: #3D4662; $base-subtle: #C8CCD8;
{
"color": {
"base": {
"value": "#4C577A",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F6F9",
"type": "color"
},
"100": {
"value": "#E6E8F0",
"type": "color"
},
"200": {
"value": "#CDD1E0",
"type": "color"
},
"300": {
"value": "#A9B0C6",
"type": "color"
},
"400": {
"value": "#868FAC",
"type": "color"
},
"500": {
"value": "#66708F",
"type": "color"
},
"600": {
"value": "#53596F",
"type": "color"
},
"700": {
"value": "#3E4251",
"type": "color"
},
"800": {
"value": "#2B2E36",
"type": "color"
},
"900": {
"value": "#1B1D22",
"type": "color"
}
}
}
}