Teal Blue

CSS

:root {
  --teal-blue: #01889f;
  --teal-blue-rgb: 1 136 159;
  --teal-blue-oklch: oklch(0.577 0.102 215.2);
}

.element {
  color: var(--teal-blue);
  background-color: hsl(189 99% 31%);
  border-color: oklch(0.577 0.102 215.2);
}

Tailwind CSS v4

@theme {
  --color-teal-blue: #01889f;
  --color-teal-blue-50: #d6fdff;
  --color-teal-blue-100: #c3f1fe;
  --color-teal-blue-200: #a3e0f1;
  --color-teal-blue-300: #78c5da;
  --color-teal-blue-400: #4baec4;
  --color-teal-blue-500: #0096b0;
  --color-teal-blue-600: #037f95;
  --color-teal-blue-700: #066677;
  --color-teal-blue-800: #014b57;
  --color-teal-blue-900: #03343d;
  --color-teal-blue-950: #001f27;
}

SCSS

$teal-blue: #01889f;
$teal-blue-rgb: 1, 136, 159;
$teal-blue-light: mix(#fff, $teal-blue, 20%);
$teal-blue-dark: mix(#000, $teal-blue, 20%);

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