#641B71 is a deep, temperate magenta. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #641B71 works with other colors. Named schemes with #641B71 in its natural role, and a note on why the supporting colors balance it.
Byzantium sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Byzantium plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Byzantium 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.
Byzantium 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 Byzantium carrying the quiet middle.
Byzantium is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Byzantium.
How #641B71 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 #641B71 at work across the surfaces designers actually ship.
:root {
--color-base: #641B71;
--color-base-rgb: 100 27 113;
--color-base-oklch: oklch(38.0% 0.150 321.1);
--color-50: #FBF2FC;
--color-100: #F4DDF8;
--color-200: #E8BDEF;
--color-300: #D390DF;
--color-400: #BC67CB;
--color-500: #A045B0;
--color-600: #7B3B87;
--color-700: #592F60;
--color-800: #3B223F;
--color-900: #241627;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
byzantium: {
50: '#FBF2FC',
100: '#F4DDF8',
200: '#E8BDEF',
300: '#D390DF',
400: '#BC67CB',
500: '#A045B0',
600: '#7B3B87',
700: '#592F60',
800: '#3B223F',
900: '#241627',
},
}
$base: #641B71; $base-ink: #FFFFFF; $base-50: #FBF2FC; $base-100: #F4DDF8; $base-200: #E8BDEF; $base-300: #D390DF; $base-400: #BC67CB; $base-500: #A045B0; $base-600: #7B3B87; $base-700: #592F60; $base-800: #3B223F; $base-900: #241627; $base-hover: #4F1559; $base-subtle: #D9ADE1;
{
"color": {
"base": {
"value": "#641B71",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#FBF2FC",
"type": "color"
},
"100": {
"value": "#F4DDF8",
"type": "color"
},
"200": {
"value": "#E8BDEF",
"type": "color"
},
"300": {
"value": "#D390DF",
"type": "color"
},
"400": {
"value": "#BC67CB",
"type": "color"
},
"500": {
"value": "#A045B0",
"type": "color"
},
"600": {
"value": "#7B3B87",
"type": "color"
},
"700": {
"value": "#592F60",
"type": "color"
},
"800": {
"value": "#3B223F",
"type": "color"
},
"900": {
"value": "#241627",
"type": "color"
}
}
}
}