#6B767F

CSS

:root {
  --made-in-the-shade: #6b767f;
  --made-in-the-shade-rgb: 107 118 127;
  --made-in-the-shade-oklch: oklch(0.56 0.019 242.7);
}

.element {
  color: var(--made-in-the-shade);
  background-color: hsl(207 9% 46%);
  border-color: oklch(0.56 0.019 242.7);
}

Tailwind CSS v4

@theme {
  --color-made-in-the-shade: #6b767f;
  --color-made-in-the-shade-50: #f1f6fa;
  --color-made-in-the-shade-100: #e3e9ee;
  --color-made-in-the-shade-200: #ced5dc;
  --color-made-in-the-shade-300: #b0b9c1;
  --color-made-in-the-shade-400: #95a0a9;
  --color-made-in-the-shade-500: #7c8892;
  --color-made-in-the-shade-600: #69737c;
  --color-made-in-the-shade-700: #545c63;
  --color-made-in-the-shade-800: #3d4348;
  --color-made-in-the-shade-900: #2a2f32;
  --color-made-in-the-shade-950: #171b1e;
}

SCSS

$made-in-the-shade: #6b767f;
$made-in-the-shade-rgb: 107, 118, 127;
$made-in-the-shade-light: mix(#fff, $made-in-the-shade, 20%);
$made-in-the-shade-dark: mix(#000, $made-in-the-shade, 20%);

.element {
  color: $made-in-the-shade;
  box-shadow: 0 0 0 2px rgba($made-in-the-shade, 0.35);
}