#B3DDDC

CSS

:root {
  --catch-the-wave: #b3dddc;
  --catch-the-wave-rgb: 179 221 220;
  --catch-the-wave-oklch: oklch(0.867 0.044 194.6);
}

.element {
  color: var(--catch-the-wave);
  background-color: hsl(179 38% 78%);
  border-color: oklch(0.867 0.044 194.6);
}

Tailwind CSS v4

@theme {
  --color-catch-the-wave: #b3dddc;
  --color-catch-the-wave-50: #e8f9f9;
  --color-catch-the-wave-100: #d8eded;
  --color-catch-the-wave-200: #c0dada;
  --color-catch-the-wave-300: #9ebfbf;
  --color-catch-the-wave-400: #81a7a6;
  --color-catch-the-wave-500: #63908f;
  --color-catch-the-wave-600: #557a79;
  --color-catch-the-wave-700: #436161;
  --color-catch-the-wave-800: #304746;
  --color-catch-the-wave-900: #213131;
  --color-catch-the-wave-950: #101d1d;
}

SCSS

$catch-the-wave: #b3dddc;
$catch-the-wave-rgb: 179, 221, 220;
$catch-the-wave-light: mix(#fff, $catch-the-wave, 20%);
$catch-the-wave-dark: mix(#000, $catch-the-wave, 20%);

.element {
  color: $catch-the-wave;
  box-shadow: 0 0 0 2px rgba($catch-the-wave, 0.35);
}