#217591

CSS

:root {
  --blue-fjord: #217591;
  --blue-fjord-rgb: 33 117 145;
  --blue-fjord-oklch: oklch(0.526 0.088 225);
}

.element {
  color: var(--blue-fjord);
  background-color: hsl(195 63% 35%);
  border-color: oklch(0.526 0.088 225);
}

Tailwind CSS v4

@theme {
  --color-blue-fjord: #217591;
  --color-blue-fjord-50: #dcfbff;
  --color-blue-fjord-100: #caefff;
  --color-blue-fjord-200: #adddf2;
  --color-blue-fjord-300: #86c1db;
  --color-blue-fjord-400: #60aac6;
  --color-blue-fjord-500: #3792b2;
  --color-blue-fjord-600: #307c96;
  --color-blue-fjord-700: #266379;
  --color-blue-fjord-800: #194959;
  --color-blue-fjord-900: #10333e;
  --color-blue-fjord-950: #031e27;
}

SCSS

$blue-fjord: #217591;
$blue-fjord-rgb: 33, 117, 145;
$blue-fjord-light: mix(#fff, $blue-fjord, 20%);
$blue-fjord-dark: mix(#000, $blue-fjord, 20%);

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