Things that are blue with K

• Kite

  Kites often sold in bright blue for sky play.

• Kingfisher

  Many kingfishers have vivid blue plumage.

• Kites

  Many kids’ kites are bright sky‑blue.

• Kaleidoscope
• Kite that is blue

  Explicitly a blue kite, flies in the sky

• Kazakhstan flag

  Kazakh flag is famously sky blue with sun/eagle

• Korean flag

  Korean flag has a famous red and blue symbol

The words in the list Things that are blue with K come from players of the word game Categories game.