Evening Emerald

CSS

:root {
  --evening-emerald: #56736f;
  --evening-emerald-rgb: 86 115 111;
  --evening-emerald-oklch: oklch(0.532 0.034 185.7);
}

.element {
  color: var(--evening-emerald);
  background-color: hsl(172 14% 39%);
  border-color: oklch(0.532 0.034 185.7);
}

Tailwind CSS v4

@theme {
  --color-evening-emerald: #56736f;
  --color-evening-emerald-50: #ebf8f7;
  --color-evening-emerald-100: #dcecea;
  --color-evening-emerald-200: #c5d9d7;
  --color-evening-emerald-300: #a5bdba;
  --color-evening-emerald-400: #89a5a1;
  --color-evening-emerald-500: #6d8e89;
  --color-evening-emerald-600: #5c7874;
  --color-evening-emerald-700: #4a605d;
  --color-evening-emerald-800: #354644;
  --color-evening-emerald-900: #24312f;
  --color-evening-emerald-950: #131d1b;
}

SCSS

$evening-emerald: #56736f;
$evening-emerald-rgb: 86, 115, 111;
$evening-emerald-light: mix(#fff, $evening-emerald, 20%);
$evening-emerald-dark: mix(#000, $evening-emerald, 20%);

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