#60A2C6

CSS

:root {
  --sub-zero: #60a2c6;
  --sub-zero-rgb: 96 162 198;
  --sub-zero-oklch: oklch(0.682 0.086 233.8);
}

.element {
  color: var(--sub-zero);
  background-color: hsl(201 47% 58%);
  border-color: oklch(0.682 0.086 233.8);
}

Tailwind CSS v4

@theme {
  --color-sub-zero: #60a2c6;
  --color-sub-zero-50: #dffaff;
  --color-sub-zero-100: #ceedff;
  --color-sub-zero-200: #b2dbf4;
  --color-sub-zero-300: #8dbfde;
  --color-sub-zero-400: #69a7ca;
  --color-sub-zero-500: #458fb6;
  --color-sub-zero-600: #3b799a;
  --color-sub-zero-700: #2f617b;
  --color-sub-zero-800: #1f485b;
  --color-sub-zero-900: #153240;
  --color-sub-zero-950: #061d29;
}

SCSS

$sub-zero: #60a2c6;
$sub-zero-rgb: 96, 162, 198;
$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);
}