In the Shallows

CSS

:root {
  --in-the-shallows: #9ad9d4;
  --in-the-shallows-rgb: 154 217 212;
  --in-the-shallows-oklch: oklch(0.841 0.064 189.8);
}

.element {
  color: var(--in-the-shallows);
  background-color: hsl(175 45% 73%);
  border-color: oklch(0.841 0.064 189.8);
}

Tailwind CSS v4

@theme {
  --color-in-the-shallows: #9ad9d4;
  --color-in-the-shallows-50: #e1fbfa;
  --color-in-the-shallows-100: #d1efed;
  --color-in-the-shallows-200: #b6dedb;
  --color-in-the-shallows-300: #91c2c0;
  --color-in-the-shallows-400: #71aba7;
  --color-in-the-shallows-500: #4f948f;
  --color-in-the-shallows-600: #447d79;
  --color-in-the-shallows-700: #366461;
  --color-in-the-shallows-800: #264a46;
  --color-in-the-shallows-900: #193331;
  --color-in-the-shallows-950: #0a1f1d;
}

SCSS

$in-the-shallows: #9ad9d4;
$in-the-shallows-rgb: 154, 217, 212;
$in-the-shallows-light: mix(#fff, $in-the-shallows, 20%);
$in-the-shallows-dark: mix(#000, $in-the-shallows, 20%);

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