Masuhana Blue

CSS

:root {
  --masuhana-blue: #4d646c;
  --masuhana-blue-rgb: 77 100 108;
  --masuhana-blue-oklch: oklch(0.488 0.03 221.1);
}

.element {
  color: var(--masuhana-blue);
  background-color: hsl(195 17% 36%);
  border-color: oklch(0.488 0.03 221.1);
}

Tailwind CSS v4

@theme {
  --color-masuhana-blue: #4d646c;
  --color-masuhana-blue-50: #ecf7fc;
  --color-masuhana-blue-100: #deeaef;
  --color-masuhana-blue-200: #c7d7de;
  --color-masuhana-blue-300: #a7bbc3;
  --color-masuhana-blue-400: #8ca3ab;
  --color-masuhana-blue-500: #718b95;
  --color-masuhana-blue-600: #60767e;
  --color-masuhana-blue-700: #4c5e65;
  --color-masuhana-blue-800: #37454a;
  --color-masuhana-blue-900: #263033;
  --color-masuhana-blue-950: #141c1f;
}

SCSS

$masuhana-blue: #4d646c;
$masuhana-blue-rgb: 77, 100, 108;
$masuhana-blue-light: mix(#fff, $masuhana-blue, 20%);
$masuhana-blue-dark: mix(#000, $masuhana-blue, 20%);

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