#9899AD

CSS

:root {
  --machinery: #9899ad;
  --machinery-rgb: 152 153 173;
  --machinery-oklch: oklch(0.689 0.029 283.3);
}

.element {
  color: var(--machinery);
  background-color: hsl(237 11% 64%);
  border-color: oklch(0.689 0.029 283.3);
}

Tailwind CSS v4

@theme {
  --color-machinery: #9899ad;
  --color-machinery-50: #f4f4fd;
  --color-machinery-100: #e6e7f2;
  --color-machinery-200: #d3d3e1;
  --color-machinery-300: #b5b6c6;
  --color-machinery-400: #9c9db0;
  --color-machinery-500: #838499;
  --color-machinery-600: #6f7082;
  --color-machinery-700: #595968;
  --color-machinery-800: #40414d;
  --color-machinery-900: #2c2d35;
  --color-machinery-950: #191a20;
}

SCSS

$machinery: #9899ad;
$machinery-rgb: 152, 153, 173;
$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);
}