What is lapis lazuli glassy color? It's bright blue. If you've never seen the rock lapis lazuli, look it up and you'll see why this means bright blue!
You learned all three of these readings when you learned the kanji. You should be able to read this on your own.
Riko showed up wearing a bright blue dress at the place she was meeting Ryoichiro.
Bright blue and spherical in shape, the higotai is a very pretty flower.
Suddenly, a beautiful bright blue insect that looked like a jewel caught my eye.