Smoky Pitch

CSS

:root {
  --smoky-pitch: #5c6e7c;
  --smoky-pitch-rgb: 92 110 124;
  --smoky-pitch-oklch: oklch(0.529 0.031 241.6);
}

.element {
  color: var(--smoky-pitch);
  background-color: hsl(206 15% 42%);
  border-color: oklch(0.529 0.031 241.6);
}

Tailwind CSS v4

@theme {
  --color-smoky-pitch: #5c6e7c;
  --color-smoky-pitch-50: #eef6fe;
  --color-smoky-pitch-100: #e0e9f2;
  --color-smoky-pitch-200: #cad6e1;
  --color-smoky-pitch-300: #abbac6;
  --color-smoky-pitch-400: #8fa1af;
  --color-smoky-pitch-500: #758999;
  --color-smoky-pitch-600: #637482;
  --color-smoky-pitch-700: #4f5d68;
  --color-smoky-pitch-800: #39444c;
  --color-smoky-pitch-900: #272f35;
  --color-smoky-pitch-950: #151c20;
}

SCSS

$smoky-pitch: #5c6e7c;
$smoky-pitch-rgb: 92, 110, 124;
$smoky-pitch-light: mix(#fff, $smoky-pitch, 20%);
$smoky-pitch-dark: mix(#000, $smoky-pitch, 20%);

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