#39323E

CSS

:root {
  --professor-plum: #39323e;
  --professor-plum-rgb: 57 50 62;
  --professor-plum-oklch: oklch(0.329 0.023 311.2);
}

.element {
  color: var(--professor-plum);
  background-color: hsl(275 11% 22%);
  border-color: oklch(0.329 0.023 311.2);
}

Tailwind CSS v4

@theme {
  --color-professor-plum: #39323e;
  --color-professor-plum-50: #f7f3fa;
  --color-professor-plum-100: #eae6ed;
  --color-professor-plum-200: #d8d2db;
  --color-professor-plum-300: #bbb4c0;
  --color-professor-plum-400: #a39ba9;
  --color-professor-plum-500: #8b8292;
  --color-professor-plum-600: #766e7b;
  --color-professor-plum-700: #5e5863;
  --color-professor-plum-800: #454049;
  --color-professor-plum-900: #2f2c32;
  --color-professor-plum-950: #1c191e;
}

SCSS

$professor-plum: #39323e;
$professor-plum-rgb: 57, 50, 62;
$professor-plum-light: mix(#fff, $professor-plum, 20%);
$professor-plum-dark: mix(#000, $professor-plum, 20%);

.element {
  color: $professor-plum;
  box-shadow: 0 0 0 2px rgba($professor-plum, 0.35);
}