#415F89

CSS

:root {
  --sea-of-galilee: #415f89;
  --sea-of-galilee-rgb: 65 95 137;
  --sea-of-galilee-oklch: oklch(0.481 0.077 256.9);
}

.element {
  color: var(--sea-of-galilee);
  background-color: hsl(215 36% 40%);
  border-color: oklch(0.481 0.077 256.9);
}

Tailwind CSS v4

@theme {
  --color-sea-of-galilee: #415f89;
  --color-sea-of-galilee-50: #e8f6ff;
  --color-sea-of-galilee-100: #d9e9ff;
  --color-sea-of-galilee-200: #c1d6f6;
  --color-sea-of-galilee-300: #a0b9df;
  --color-sea-of-galilee-400: #81a0cc;
  --color-sea-of-galilee-500: #6588b9;
  --color-sea-of-galilee-600: #56739c;
  --color-sea-of-galilee-700: #445c7d;
  --color-sea-of-galilee-800: #30445d;
  --color-sea-of-galilee-900: #202f41;
  --color-sea-of-galilee-950: #101b2a;
}

SCSS

$sea-of-galilee: #415f89;
$sea-of-galilee-rgb: 65, 95, 137;
$sea-of-galilee-light: mix(#fff, $sea-of-galilee, 20%);
$sea-of-galilee-dark: mix(#000, $sea-of-galilee, 20%);

.element {
  color: $sea-of-galilee;
  box-shadow: 0 0 0 2px rgba($sea-of-galilee, 0.35);
}