Green Blue

CSS

:root {
  --green-blue: #42b395;
  --green-blue-rgb: 66 179 149;
  --green-blue-oklch: oklch(0.694 0.112 172.2);
}

.element {
  color: var(--green-blue);
  background-color: hsl(164 46% 48%);
  border-color: oklch(0.694 0.112 172.2);
}

Tailwind CSS v4

@theme {
  --color-green-blue: #42b395;
  --color-green-blue-50: #d5fff3;
  --color-green-blue-100: #c2f5e5;
  --color-green-blue-200: #a2e4d1;
  --color-green-blue-300: #76cab3;
  --color-green-blue-400: #4cb497;
  --color-green-blue-500: #009d7e;
  --color-green-blue-600: #02856b;
  --color-green-blue-700: #066b55;
  --color-green-blue-800: #064e3d;
  --color-green-blue-900: #05372a;
  --color-green-blue-950: #002117;
}

SCSS

$green-blue: #42b395;
$green-blue-rgb: 66, 179, 149;
$green-blue-light: mix(#fff, $green-blue, 20%);
$green-blue-dark: mix(#000, $green-blue, 20%);

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