#E6785B

CSS

:root {
  --phoenix-red: #e6785b;
  --phoenix-red-rgb: 230 120 91;
  --phoenix-red-oklch: oklch(0.692 0.143 35.8);
}

.element {
  color: var(--phoenix-red);
  background-color: hsl(13 74% 63%);
  border-color: oklch(0.692 0.143 35.8);
}

Tailwind CSS v4

@theme {
  --color-phoenix-red: #e6785b;
  --color-phoenix-red-50: #ffe8d8;
  --color-phoenix-red-100: #ffd8c6;
  --color-phoenix-red-200: #ffbfa8;
  --color-phoenix-red-300: #f79d82;
  --color-phoenix-red-400: #e67d61;
  --color-phoenix-red-500: #d35c3d;
  --color-phoenix-red-600: #b24f35;
  --color-phoenix-red-700: #8f3f2a;
  --color-phoenix-red-800: #6b2c1f;
  --color-phoenix-red-900: #4b1e14;
  --color-phoenix-red-950: #310d06;
}

SCSS

$phoenix-red: #e6785b;
$phoenix-red-rgb: 230, 120, 91;
$phoenix-red-light: mix(#fff, $phoenix-red, 20%);
$phoenix-red-dark: mix(#000, $phoenix-red, 20%);

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