#B1DFDB

CSS

:root {
  --catch-the-wave: #b1dfdb;
  --catch-the-wave-rgb: 177 223 219;
  --catch-the-wave-oklch: oklch(0.87 0.048 189.7);
}

.element {
  color: var(--catch-the-wave);
  background-color: hsl(175 42% 78%);
  border-color: oklch(0.87 0.048 189.7);
}

Tailwind CSS v4

@theme {
  --color-catch-the-wave: #b1dfdb;
  --color-catch-the-wave-50: #e6faf8;
  --color-catch-the-wave-100: #d7edec;
  --color-catch-the-wave-200: #bedbd9;
  --color-catch-the-wave-300: #9cc0bd;
  --color-catch-the-wave-400: #7ea8a4;
  --color-catch-the-wave-500: #60918d;
  --color-catch-the-wave-600: #527a77;
  --color-catch-the-wave-700: #41625f;
  --color-catch-the-wave-800: #2f4845;
  --color-catch-the-wave-900: #203230;
  --color-catch-the-wave-950: #0f1e1c;
}

SCSS

$catch-the-wave: #b1dfdb;
$catch-the-wave-rgb: 177, 223, 219;
$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);
}