Blue Coral

CSS

:root {
  --blue-coral: #1d5a6e;
  --blue-coral-rgb: 29 90 110;
  --blue-coral-oklch: oklch(0.438 0.069 223.7);
}

.element {
  color: var(--blue-coral);
  background-color: hsl(195 58% 27%);
  border-color: oklch(0.438 0.069 223.7);
}

Tailwind CSS v4

@theme {
  --color-blue-coral: #1d5a6e;
  --color-blue-coral-50: #e1faff;
  --color-blue-coral-100: #d1edfa;
  --color-blue-coral-200: #b6dbeb;
  --color-blue-coral-300: #92bfd3;
  --color-blue-coral-400: #70a8bd;
  --color-blue-coral-500: #4f90a8;
  --color-blue-coral-600: #437a8e;
  --color-blue-coral-700: #366272;
  --color-blue-coral-800: #254853;
  --color-blue-coral-900: #19323a;
  --color-blue-coral-950: #091e24;
}

SCSS

$blue-coral: #1d5a6e;
$blue-coral-rgb: 29, 90, 110;
$blue-coral-light: mix(#fff, $blue-coral, 20%);
$blue-coral-dark: mix(#000, $blue-coral, 20%);

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