#727589

CSS

:root {
  --abandoned-spaceship: #727589;
  --abandoned-spaceship-rgb: 114 117 137;
  --abandoned-spaceship-oklch: oklch(0.567 0.031 278.6);
}

.element {
  color: var(--abandoned-spaceship);
  background-color: hsl(232 9% 49%);
  border-color: oklch(0.567 0.031 278.6);
}

Tailwind CSS v4

@theme {
  --color-abandoned-spaceship: #727589;
  --color-abandoned-spaceship-50: #f3f4fe;
  --color-abandoned-spaceship-100: #e6e7f2;
  --color-abandoned-spaceship-200: #d1d3e2;
  --color-abandoned-spaceship-300: #b4b6c7;
  --color-abandoned-spaceship-400: #9a9db1;
  --color-abandoned-spaceship-500: #81859b;
  --color-abandoned-spaceship-600: #6d7083;
  --color-abandoned-spaceship-700: #575a69;
  --color-abandoned-spaceship-800: #3f424d;
  --color-abandoned-spaceship-900: #2c2d36;
  --color-abandoned-spaceship-950: #191a21;
}

SCSS

$abandoned-spaceship: #727589;
$abandoned-spaceship-rgb: 114, 117, 137;
$abandoned-spaceship-light: mix(#fff, $abandoned-spaceship, 20%);
$abandoned-spaceship-dark: mix(#000, $abandoned-spaceship, 20%);

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