(as) clear as the sky is blue

(as) clear as the sky is blue

Very apparent or obvious. You owe us money—it's right there in your contract, clear as the sky is blue!
See also: blue, clear, sky
Farlex Dictionary of Idioms.
See also:
  • come out of a clear blue sky
  • out of a clear (blue) sky
  • out of the blue
  • blue screen of death
  • BSOD
  • have a blue fit
  • blue boys
  • blue suit
  • blue suits
  • blue coats