Some languages, for example Vietnamese or Thai, do not have different words for the basic colors blue and green. Other languages have distinct words for light and dark blue, just as English and other languages distinguish between red and pink. In Russian синий (sinij) is dark blue, and голубой (goluboj) is light blue. In Greek, μπλε (ble) is light blue and γαλάζιο (galazio) dark blue. In Italian, azzurro is light blue and blu is dark blue. (See here and here and elsewhere.) A native English speaker, I know only one word — see only one basic color, though many shades — to encompass the basic color blue.
I found this piece of a robin’s shell on the driveway yesterday. Regardless of whether you think this is the same color as the blue in the flowers in yesterday’s post, I hope we can agree on another word: beautiful.