#641663 is a deep, temperate pink. 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 #641663 works with other colors. Named schemes with #641663 in its natural role, and a note on why the supporting colors balance it.
Byzantium 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.
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 adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Byzantium.
Byzantium sits between cream and a deep berry here, softened by a blush accent and grounded by 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.
How #641663 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 #641663 at work across the surfaces designers actually ship.
:root {
--color-base: #641663;
--color-base-rgb: 100 22 99;
--color-base-oklch: oklch(36.6% 0.143 328.6);
--color-50: #FDF2FD;
--color-100: #F8DDF8;
--color-200: #F0BCEF;
--color-300: #E18EE0;
--color-400: #CE64CC;
--color-500: #B342B1;
--color-600: #893987;
--color-700: #612E60;
--color-800: #40213F;
--color-900: #271627;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
byzantium: {
50: '#FDF2FD',
100: '#F8DDF8',
200: '#F0BCEF',
300: '#E18EE0',
400: '#CE64CC',
500: '#B342B1',
600: '#893987',
700: '#612E60',
800: '#40213F',
900: '#271627',
},
}
$base: #641663; $base-ink: #FFFFFF; $base-50: #FDF2FD; $base-100: #F8DDF8; $base-200: #F0BCEF; $base-300: #E18EE0; $base-400: #CE64CC; $base-500: #B342B1; $base-600: #893987; $base-700: #612E60; $base-800: #40213F; $base-900: #271627; $base-hover: #50124F; $base-subtle: #E1A9E0;
{
"color": {
"base": {
"value": "#641663",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#FDF2FD",
"type": "color"
},
"100": {
"value": "#F8DDF8",
"type": "color"
},
"200": {
"value": "#F0BCEF",
"type": "color"
},
"300": {
"value": "#E18EE0",
"type": "color"
},
"400": {
"value": "#CE64CC",
"type": "color"
},
"500": {
"value": "#B342B1",
"type": "color"
},
"600": {
"value": "#893987",
"type": "color"
},
"700": {
"value": "#612E60",
"type": "color"
},
"800": {
"value": "#40213F",
"type": "color"
},
"900": {
"value": "#271627",
"type": "color"
}
}
}
}