#9798B7

CSS

:root {
  --machinery: #9798b7;
  --machinery-rgb: 151 152 183;
  --machinery-oklch: oklch(0.689 0.045 283.7);
}

.element {
  color: var(--machinery);
  background-color: hsl(238 18% 65%);
  border-color: oklch(0.689 0.045 283.7);
}

Tailwind CSS v4

@theme {
  --color-machinery: #9798b7;
  --color-machinery-50: #f3f4ff;
  --color-machinery-100: #e6e6f7;
  --color-machinery-200: #d2d2e7;
  --color-machinery-300: #b5b5ce;
  --color-machinery-400: #9a9bb9;
  --color-machinery-500: #8283a4;
  --color-machinery-600: #6e6f8a;
  --color-machinery-700: #58586f;
  --color-machinery-800: #3f4152;
  --color-machinery-900: #2c2d39;
  --color-machinery-950: #191a23;
}

SCSS

$machinery: #9798b7;
$machinery-rgb: 151, 152, 183;
$machinery-light: mix(#fff, $machinery, 20%);
$machinery-dark: mix(#000, $machinery, 20%);

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