Greenish Blue

CSS

:root {
  --greenish-blue: #0b8b87;
  --greenish-blue-rgb: 11 139 135;
  --greenish-blue-oklch: oklch(0.576 0.097 191.2);
}

.element {
  color: var(--greenish-blue);
  background-color: hsl(178 85% 29%);
  border-color: oklch(0.576 0.097 191.2);
}

Tailwind CSS v4

@theme {
  --color-greenish-blue: #0b8b87;
  --color-greenish-blue-50: #d6fffd;
  --color-greenish-blue-100: #c3f3f1;
  --color-greenish-blue-200: #a3e2e0;
  --color-greenish-blue-300: #79c8c5;
  --color-greenish-blue-400: #4eb1ac;
  --color-greenish-blue-500: #009a96;
  --color-greenish-blue-600: #0c827f;
  --color-greenish-blue-700: #0c6865;
  --color-greenish-blue-800: #074d49;
  --color-greenish-blue-900: #053533;
  --color-greenish-blue-950: #00211f;
}

SCSS

$greenish-blue: #0b8b87;
$greenish-blue-rgb: 11, 139, 135;
$greenish-blue-light: mix(#fff, $greenish-blue, 20%);
$greenish-blue-dark: mix(#000, $greenish-blue, 20%);

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