I love the colour blue - it's one of the primary colours
Blue is pretty and there are so many shades from Navy blue to light blue
Blue
Blue is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model. It lies between violet and green on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering.
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- In Thailand, blue is associated with Friday on the Thai solar calendar. Anyone may wear blue on Fridays and anyone born on a Friday may adopt blue as their colour.
In world culture As a national and international colour.
Various shades of blue are used as the national colours for many nations.
- Azure, a light blue, is the national colour of Italy (from the livery colour of the former reigning family, the House of Savoy). National sport clubs are known as the "