#747585

CSS

:root {
  --abandoned-spaceship: #747585;
  --abandoned-spaceship-rgb: 116 117 133;
  --abandoned-spaceship-oklch: oklch(0.567 0.025 282.7);
}

.element {
  color: var(--abandoned-spaceship);
  background-color: hsl(236 7% 49%);
  border-color: oklch(0.567 0.025 282.7);
}

Tailwind CSS v4

@theme {
  --color-abandoned-spaceship: #747585;
  --color-abandoned-spaceship-50: #f4f4fc;
  --color-abandoned-spaceship-100: #e7e7f0;
  --color-abandoned-spaceship-200: #d3d3df;
  --color-abandoned-spaceship-300: #b6b6c4;
  --color-abandoned-spaceship-400: #9c9dad;
  --color-abandoned-spaceship-500: #838496;
  --color-abandoned-spaceship-600: #6f707f;
  --color-abandoned-spaceship-700: #595a66;
  --color-abandoned-spaceship-800: #41424b;
  --color-abandoned-spaceship-900: #2c2d34;
  --color-abandoned-spaceship-950: #1a1a1f;
}

SCSS

$abandoned-spaceship: #747585;
$abandoned-spaceship-rgb: 116, 117, 133;
$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);
}