#B7E3E2

CSS

:root {
  --catch-the-wave: #b7e3e2;
  --catch-the-wave-rgb: 183 227 226;
  --catch-the-wave-oklch: oklch(0.885 0.046 194.6);
}

.element {
  color: var(--catch-the-wave);
  background-color: hsl(179 44% 80%);
  border-color: oklch(0.885 0.046 194.6);
}

Tailwind CSS v4

@theme {
  --color-catch-the-wave: #b7e3e2;
  --color-catch-the-wave-50: #e7f9f9;
  --color-catch-the-wave-100: #d7eded;
  --color-catch-the-wave-200: #bfdbdb;
  --color-catch-the-wave-300: #9dbfbf;
  --color-catch-the-wave-400: #7fa7a6;
  --color-catch-the-wave-500: #62908f;
  --color-catch-the-wave-600: #537a79;
  --color-catch-the-wave-700: #426161;
  --color-catch-the-wave-800: #304847;
  --color-catch-the-wave-900: #203231;
  --color-catch-the-wave-950: #101e1d;
}

SCSS

$catch-the-wave: #b7e3e2;
$catch-the-wave-rgb: 183, 227, 226;
$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);
}