#00C2F4

CSS

:root {
  --blue-bikini: #00c2f4;
  --blue-bikini-rgb: 0 194 244;
  --blue-bikini-oklch: oklch(0.757 0.143 224.9);
}

.element {
  color: var(--blue-bikini);
  background-color: hsl(192 100% 48%);
  border-color: oklch(0.757 0.143 224.9);
}

Tailwind CSS v4

@theme {
  --color-blue-bikini: #00c2f4;
  --color-blue-bikini-50: #cbfeff;
  --color-blue-bikini-100: #b5f2ff;
  --color-blue-bikini-200: #8fe1ff;
  --color-blue-bikini-300: #5bc6f0;
  --color-blue-bikini-400: #00afde;
  --color-blue-bikini-500: #0097cd;
  --color-blue-bikini-600: #0080ad;
  --color-blue-bikini-700: #00668b;
  --color-blue-bikini-800: #004c66;
  --color-blue-bikini-900: #003548;
  --color-blue-bikini-950: #00202f;
}

SCSS

$blue-bikini: #00c2f4;
$blue-bikini-rgb: 0, 194, 244;
$blue-bikini-light: mix(#fff, $blue-bikini, 20%);
$blue-bikini-dark: mix(#000, $blue-bikini, 20%);

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