Black Ribbon

CSS

:root {
  --black-ribbon: #484c51;
  --black-ribbon-rgb: 72 76 81;
  --black-ribbon-oklch: oklch(0.415 0.01 253.9);
}

.element {
  color: var(--black-ribbon);
  background-color: hsl(213 6% 30%);
  border-color: oklch(0.415 0.01 253.9);
}

Tailwind CSS v4

@theme {
  --color-black-ribbon: #484c51;
  --color-black-ribbon-50: #f3f5f8;
  --color-black-ribbon-100: #e6e8eb;
  --color-black-ribbon-200: #d1d4d8;
  --color-black-ribbon-300: #b4b8bc;
  --color-black-ribbon-400: #9a9fa4;
  --color-black-ribbon-500: #82878d;
  --color-black-ribbon-600: #6e7277;
  --color-black-ribbon-700: #585b5f;
  --color-black-ribbon-800: #404346;
  --color-black-ribbon-900: #2c2e30;
  --color-black-ribbon-950: #191b1c;
}

SCSS

$black-ribbon: #484c51;
$black-ribbon-rgb: 72, 76, 81;
$black-ribbon-light: mix(#fff, $black-ribbon, 20%);
$black-ribbon-dark: mix(#000, $black-ribbon, 20%);

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