Midnight Hour

CSS

:root {
  --midnight-hour: #3b484f;
  --midnight-hour-rgb: 59 72 79;
  --midnight-hour-oklch: oklch(0.393 0.021 231.5);
}

.element {
  color: var(--midnight-hour);
  background-color: hsl(201 14% 27%);
  border-color: oklch(0.393 0.021 231.5);
}

Tailwind CSS v4

@theme {
  --color-midnight-hour: #3b484f;
  --color-midnight-hour-50: #f0f6fa;
  --color-midnight-hour-100: #e2e9ee;
  --color-midnight-hour-200: #ccd6dc;
  --color-midnight-hour-300: #aeb9c0;
  --color-midnight-hour-400: #93a1a9;
  --color-midnight-hour-500: #798992;
  --color-midnight-hour-600: #67747b;
  --color-midnight-hour-700: #525d63;
  --color-midnight-hour-800: #3b4448;
  --color-midnight-hour-900: #292f32;
  --color-midnight-hour-950: #171b1e;
}

SCSS

$midnight-hour: #3b484f;
$midnight-hour-rgb: 59, 72, 79;
$midnight-hour-light: mix(#fff, $midnight-hour, 20%);
$midnight-hour-dark: mix(#000, $midnight-hour, 20%);

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