Dark Denim Blue

CSS

:root {
  --dark-denim-blue: #00334f;
  --dark-denim-blue-rgb: 0 51 79;
  --dark-denim-blue-oklch: oklch(0.306 0.07 240.2);
}

.element {
  color: var(--dark-denim-blue);
  background-color: hsl(201 100% 15%);
  border-color: oklch(0.306 0.07 240.2);
}

Tailwind CSS v4

@theme {
  --color-dark-denim-blue: #00334f;
  --color-dark-denim-blue-50: #e4f8ff;
  --color-dark-denim-blue-100: #d4ebfe;
  --color-dark-denim-blue-200: #bbd9f0;
  --color-dark-denim-blue-300: #98bcd9;
  --color-dark-denim-blue-400: #78a4c4;
  --color-dark-denim-blue-500: #598db0;
  --color-dark-denim-blue-600: #4c7795;
  --color-dark-denim-blue-700: #3d5f78;
  --color-dark-denim-blue-800: #2a4658;
  --color-dark-denim-blue-900: #1c303e;
  --color-dark-denim-blue-950: #0c1d27;
}

SCSS

$dark-denim-blue: #00334f;
$dark-denim-blue-rgb: 0, 51, 79;
$dark-denim-blue-light: mix(#fff, $dark-denim-blue, 20%);
$dark-denim-blue-dark: mix(#000, $dark-denim-blue, 20%);

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