#9E98A4

CSS

:root {
  --lavender-ash: #9e98a4;
  --lavender-ash-rgb: 158 152 164;
  --lavender-ash-oklch: oklch(0.689 0.019 308.2);
}

.element {
  color: var(--lavender-ash);
  background-color: hsl(270 6% 62%);
  border-color: oklch(0.689 0.019 308.2);
}

Tailwind CSS v4

@theme {
  --color-lavender-ash: #9e98a4;
  --color-lavender-ash-50: #f7f4f9;
  --color-lavender-ash-100: #eae6ed;
  --color-lavender-ash-200: #d7d2da;
  --color-lavender-ash-300: #bab5bf;
  --color-lavender-ash-400: #a19ca7;
  --color-lavender-ash-500: #8a8390;
  --color-lavender-ash-600: #746f7a;
  --color-lavender-ash-700: #5d5961;
  --color-lavender-ash-800: #444148;
  --color-lavender-ash-900: #2f2d32;
  --color-lavender-ash-950: #1b1a1e;
}

SCSS

$lavender-ash: #9e98a4;
$lavender-ash-rgb: 158, 152, 164;
$lavender-ash-light: mix(#fff, $lavender-ash, 20%);
$lavender-ash-dark: mix(#000, $lavender-ash, 20%);

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