#747587

CSS

:root {
  --flying-carpet: #747587;
  --flying-carpet-rgb: 116 117 135;
  --flying-carpet-oklch: oklch(0.568 0.028 283);
}

.element {
  color: var(--flying-carpet);
  background-color: hsl(237 8% 49%);
  border-color: oklch(0.568 0.028 283);
}

Tailwind CSS v4

@theme {
  --color-flying-carpet: #747587;
  --color-flying-carpet-50: #f4f4fd;
  --color-flying-carpet-100: #e6e7f1;
  --color-flying-carpet-200: #d3d3e0;
  --color-flying-carpet-300: #b5b6c5;
  --color-flying-carpet-400: #9c9daf;
  --color-flying-carpet-500: #838498;
  --color-flying-carpet-600: #6f7081;
  --color-flying-carpet-700: #595967;
  --color-flying-carpet-800: #40414c;
  --color-flying-carpet-900: #2c2d35;
  --color-flying-carpet-950: #191a20;
}

SCSS

$flying-carpet: #747587;
$flying-carpet-rgb: 116, 117, 135;
$flying-carpet-light: mix(#fff, $flying-carpet, 20%);
$flying-carpet-dark: mix(#000, $flying-carpet, 20%);

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