#959D8D

CSS

:root {
  --herbalist: #959d8d;
  --herbalist-rgb: 149 157 141;
  --herbalist-oklch: oklch(0.685 0.025 128.9);
}

.element {
  color: var(--herbalist);
  background-color: hsl(90 8% 58%);
  border-color: oklch(0.685 0.025 128.9);
}

Tailwind CSS v4

@theme {
  --color-herbalist: #959d8d;
  --color-herbalist-50: #f3f7ef;
  --color-herbalist-100: #e5eae1;
  --color-herbalist-200: #d0d7cc;
  --color-herbalist-300: #b3baad;
  --color-herbalist-400: #9aa192;
  --color-herbalist-500: #818a78;
  --color-herbalist-600: #6d7466;
  --color-herbalist-700: #575d51;
  --color-herbalist-800: #40443b;
  --color-herbalist-900: #2c2f28;
  --color-herbalist-950: #191c16;
}

SCSS

$herbalist: #959d8d;
$herbalist-rgb: 149, 157, 141;
$herbalist-light: mix(#fff, $herbalist, 20%);
$herbalist-dark: mix(#000, $herbalist, 20%);

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