Light Washed Blue

CSS

:root {
  --light-washed-blue: #acdce7;
  --light-washed-blue-rgb: 172 220 231;
  --light-washed-blue-oklch: oklch(0.864 0.052 213.3);
}

.element {
  color: var(--light-washed-blue);
  background-color: hsl(191 55% 79%);
  border-color: oklch(0.864 0.052 213.3);
}

Tailwind CSS v4

@theme {
  --color-light-washed-blue: #acdce7;
  --color-light-washed-blue-50: #e5f9ff;
  --color-light-washed-blue-100: #d5edf3;
  --color-light-washed-blue-200: #bcdae2;
  --color-light-washed-blue-300: #9abfc8;
  --color-light-washed-blue-400: #7ba7b1;
  --color-light-washed-blue-500: #5c909b;
  --color-light-washed-blue-600: #4f7983;
  --color-light-washed-blue-700: #3f6169;
  --color-light-washed-blue-800: #2d474d;
  --color-light-washed-blue-900: #1e3135;
  --color-light-washed-blue-950: #0e1d20;
}

SCSS

$light-washed-blue: #acdce7;
$light-washed-blue-rgb: 172, 220, 231;
$light-washed-blue-light: mix(#fff, $light-washed-blue, 20%);
$light-washed-blue-dark: mix(#000, $light-washed-blue, 20%);

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