#ACACAC

CSS

:root {
  --elephant-in-the-room: #acacac;
  --elephant-in-the-room-rgb: 172 172 172;
  --elephant-in-the-room-oklch: oklch(0.744 0 0);
}

.element {
  color: var(--elephant-in-the-room);
  background-color: hsl(0 0% 67%);
  border-color: oklch(0.744 0 0);
}

Tailwind CSS v4

@theme {
  --color-elephant-in-the-room: #acacac;
  --color-elephant-in-the-room-50: #f5f5f5;
  --color-elephant-in-the-room-100: #e8e8e8;
  --color-elephant-in-the-room-200: #d4d4d4;
  --color-elephant-in-the-room-300: #b7b7b7;
  --color-elephant-in-the-room-400: #9e9e9e;
  --color-elephant-in-the-room-500: #868686;
  --color-elephant-in-the-room-600: #717171;
  --color-elephant-in-the-room-700: #5b5b5b;
  --color-elephant-in-the-room-800: #424242;
  --color-elephant-in-the-room-900: #2e2e2e;
  --color-elephant-in-the-room-950: #1b1b1b;
}

SCSS

$elephant-in-the-room: #acacac;
$elephant-in-the-room-rgb: 172, 172, 172;
$elephant-in-the-room-light: mix(#fff, $elephant-in-the-room, 20%);
$elephant-in-the-room-dark: mix(#000, $elephant-in-the-room, 20%);

.element {
  color: $elephant-in-the-room;
  box-shadow: 0 0 0 2px rgba($elephant-in-the-room, 0.35);
}