#6A778D

CSS

:root {
  --infinity-and-beyond: #6a778d;
  --infinity-and-beyond-rgb: 106 119 141;
  --infinity-and-beyond-oklch: oklch(0.567 0.038 260.9);
}

.element {
  color: var(--infinity-and-beyond);
  background-color: hsl(218 14% 48%);
  border-color: oklch(0.567 0.038 260.9);
}

Tailwind CSS v4

@theme {
  --color-infinity-and-beyond: #6a778d;
  --color-infinity-and-beyond-50: #eff5ff;
  --color-infinity-and-beyond-100: #e1e8f5;
  --color-infinity-and-beyond-200: #ccd5e5;
  --color-infinity-and-beyond-300: #adb8cb;
  --color-infinity-and-beyond-400: #929fb5;
  --color-infinity-and-beyond-500: #7887a0;
  --color-infinity-and-beyond-600: #667287;
  --color-infinity-and-beyond-700: #515b6c;
  --color-infinity-and-beyond-800: #3b4350;
  --color-infinity-and-beyond-900: #282e37;
  --color-infinity-and-beyond-950: #161b22;
}

SCSS

$infinity-and-beyond: #6a778d;
$infinity-and-beyond-rgb: 106, 119, 141;
$infinity-and-beyond-light: mix(#fff, $infinity-and-beyond, 20%);
$infinity-and-beyond-dark: mix(#000, $infinity-and-beyond, 20%);

.element {
  color: $infinity-and-beyond;
  box-shadow: 0 0 0 2px rgba($infinity-and-beyond, 0.35);
}