#086170

CSS

:root {
  --teal-with-it: #086170;
  --teal-with-it-rgb: 8 97 112;
  --teal-with-it-oklch: oklch(0.454 0.077 213.4);
}

.element {
  color: var(--teal-with-it);
  background-color: hsl(189 87% 24%);
  border-color: oklch(0.454 0.077 213.4);
}

Tailwind CSS v4

@theme {
  --color-teal-with-it: #086170;
  --color-teal-with-it-50: #ddfbff;
  --color-teal-with-it-100: #cceff8;
  --color-teal-with-it-200: #b0dde9;
  --color-teal-with-it-300: #8ac2d0;
  --color-teal-with-it-400: #65abba;
  --color-teal-with-it-500: #3e93a5;
  --color-teal-with-it-600: #367d8b;
  --color-teal-with-it-700: #2b6470;
  --color-teal-with-it-800: #1d4a52;
  --color-teal-with-it-900: #133339;
  --color-teal-with-it-950: #051f23;
}

SCSS

$teal-with-it: #086170;
$teal-with-it-rgb: 8, 97, 112;
$teal-with-it-light: mix(#fff, $teal-with-it, 20%);
$teal-with-it-dark: mix(#000, $teal-with-it, 20%);

.element {
  color: $teal-with-it;
  box-shadow: 0 0 0 2px rgba($teal-with-it, 0.35);
}