Minesweeper’s Red

CSS

:root {
  --minesweeper-s-red: #fa0103;
  --minesweeper-s-red-rgb: 250 1 3;
  --minesweeper-s-red-oklch: oklch(0.619 0.254 29.1);
}

.element {
  color: var(--minesweeper-s-red);
  background-color: hsl(360 99% 49%);
  border-color: oklch(0.619 0.254 29.1);
}

Tailwind CSS v4

@theme {
  --color-minesweeper-s-red: #fa0103;
  --color-minesweeper-s-red-50: #ffdac9;
  --color-minesweeper-s-red-100: #ffc8b4;
  --color-minesweeper-s-red-200: #ffa890;
  --color-minesweeper-s-red-300: #ff7b61;
  --color-minesweeper-s-red-400: #ff4838;
  --color-minesweeper-s-red-500: #ff0000;
  --color-minesweeper-s-red-600: #db0000;
  --color-minesweeper-s-red-700: #b10000;
  --color-minesweeper-s-red-800: #850001;
  --color-minesweeper-s-red-900: #5e0002;
  --color-minesweeper-s-red-950: #400000;
}

SCSS

$minesweeper-s-red: #fa0103;
$minesweeper-s-red-rgb: 250, 1, 3;
$minesweeper-s-red-light: mix(#fff, $minesweeper-s-red, 20%);
$minesweeper-s-red-dark: mix(#000, $minesweeper-s-red, 20%);

.element {
  color: $minesweeper-s-red;
  box-shadow: 0 0 0 2px rgba($minesweeper-s-red, 0.35);
}