Secure Blue

CSS

:root {
  --secure-blue: #5389a1;
  --secure-blue-rgb: 83 137 161;
  --secure-blue-oklch: oklch(0.602 0.068 228.2);
}

.element {
  color: var(--secure-blue);
  background-color: hsl(198 32% 48%);
  border-color: oklch(0.602 0.068 228.2);
}

Tailwind CSS v4

@theme {
  --color-secure-blue: #5389a1;
  --color-secure-blue-50: #e2f9ff;
  --color-secure-blue-100: #d2edfb;
  --color-secure-blue-200: #b8daec;
  --color-secure-blue-300: #94bfd4;
  --color-secure-blue-400: #73a7be;
  --color-secure-blue-500: #528faa;
  --color-secure-blue-600: #47798f;
  --color-secure-blue-700: #386173;
  --color-secure-blue-800: #274754;
  --color-secure-blue-900: #1a313b;
  --color-secure-blue-950: #0a1d25;
}

SCSS

$secure-blue: #5389a1;
$secure-blue-rgb: 83, 137, 161;
$secure-blue-light: mix(#fff, $secure-blue, 20%);
$secure-blue-dark: mix(#000, $secure-blue, 20%);

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