#0055A8

CSS

:root {
  --blue-chip: #0055a8;
  --blue-chip-rgb: 0 85 168;
  --blue-chip-oklch: oklch(0.457 0.151 255);
}

.element {
  color: var(--blue-chip);
  background-color: hsl(210 100% 33%);
  border-color: oklch(0.457 0.151 255);
}

Tailwind CSS v4

@theme {
  --color-blue-chip: #0055a8;
  --color-blue-chip-50: #daf8ff;
  --color-blue-chip-100: #c8eaff;
  --color-blue-chip-200: #abd7ff;
  --color-blue-chip-300: #85b9ff;
  --color-blue-chip-400: #5da0f5;
  --color-blue-chip-500: #3586e7;
  --color-blue-chip-600: #2e72c3;
  --color-blue-chip-700: #255b9c;
  --color-blue-chip-800: #154375;
  --color-blue-chip-900: #0d2e52;
  --color-blue-chip-950: #021b37;
}

SCSS

$blue-chip: #0055a8;
$blue-chip-rgb: 0, 85, 168;
$blue-chip-light: mix(#fff, $blue-chip, 20%);
$blue-chip-dark: mix(#000, $blue-chip, 20%);

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