#60A2CA

CSS

:root {
  --sub-zero: #60a2ca;
  --sub-zero-rgb: 96 162 202;
  --sub-zero-oklch: oklch(0.684 0.09 236.7);
}

.element {
  color: var(--sub-zero);
  background-color: hsl(203 50% 58%);
  border-color: oklch(0.684 0.09 236.7);
}

Tailwind CSS v4

@theme {
  --color-sub-zero: #60a2ca;
  --color-sub-zero-50: #dffaff;
  --color-sub-zero-100: #cdedff;
  --color-sub-zero-200: #b2daf7;
  --color-sub-zero-300: #8cbee1;
  --color-sub-zero-400: #69a7cd;
  --color-sub-zero-500: #448fba;
  --color-sub-zero-600: #3b799d;
  --color-sub-zero-700: #2f617e;
  --color-sub-zero-800: #1f475d;
  --color-sub-zero-900: #143141;
  --color-sub-zero-950: #061d2a;
}

SCSS

$sub-zero: #60a2ca;
$sub-zero-rgb: 96, 162, 202;
$sub-zero-light: mix(#fff, $sub-zero, 20%);
$sub-zero-dark: mix(#000, $sub-zero, 20%);

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