#863F00

CSS

:root {
  --otterly-brown: #863f00;
  --otterly-brown-rgb: 134 63 0;
  --otterly-brown-oklch: oklch(0.452 0.116 52.1);
}

.element {
  color: var(--otterly-brown);
  background-color: hsl(28 100% 26%);
  border-color: oklch(0.452 0.116 52.1);
}

Tailwind CSS v4

@theme {
  --color-otterly-brown: #863f00;
  --color-otterly-brown-50: #ffedd7;
  --color-otterly-brown-100: #ffdec4;
  --color-otterly-brown-200: #fcc8a6;
  --color-otterly-brown-300: #e6a77e;
  --color-otterly-brown-400: #d48a5b;
  --color-otterly-brown-500: #c16d35;
  --color-otterly-brown-600: #a35d2e;
  --color-otterly-brown-700: #834a24;
  --color-otterly-brown-800: #62351a;
  --color-otterly-brown-900: #452411;
  --color-otterly-brown-950: #2c1304;
}

SCSS

$otterly-brown: #863f00;
$otterly-brown-rgb: 134, 63, 0;
$otterly-brown-light: mix(#fff, $otterly-brown, 20%);
$otterly-brown-dark: mix(#000, $otterly-brown, 20%);

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