#467AAF

CSS

:root {
  --into-the-blue: #467aaf;
  --into-the-blue-rgb: 70 122 175;
  --into-the-blue-oklch: oklch(0.567 0.1 250.4);
}

.element {
  color: var(--into-the-blue);
  background-color: hsl(210 43% 48%);
  border-color: oklch(0.567 0.1 250.4);
}

Tailwind CSS v4

@theme {
  --color-into-the-blue: #467aaf;
  --color-into-the-blue-50: #e1f8ff;
  --color-into-the-blue-100: #d1ebff;
  --color-into-the-blue-200: #b6d8ff;
  --color-into-the-blue-300: #93bbea;
  --color-into-the-blue-400: #70a3d8;
  --color-into-the-blue-500: #508ac6;
  --color-into-the-blue-600: #4475a7;
  --color-into-the-blue-700: #365e86;
  --color-into-the-blue-800: #244563;
  --color-into-the-blue-900: #183046;
  --color-into-the-blue-950: #091c2d;
}

SCSS

$into-the-blue: #467aaf;
$into-the-blue-rgb: 70, 122, 175;
$into-the-blue-light: mix(#fff, $into-the-blue, 20%);
$into-the-blue-dark: mix(#000, $into-the-blue, 20%);

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