Cyan is a light blue.
teal
blue?
Auburn, amber, ash, aquamarine... Navy blue, Navajo white...
colors W: * wine * wisteria * white * Wedgewood blue
There is no crayon color that starts with the letter K. Source: http://en.wikipedia.org/wiki/List_of_Crayola_crayon_colors
turquoise
There are some colors that are very similar to the color ruby blue. A few notable examples are the colors "blue sapphire", "turquoise", and the color "teal".
Baby Blue is a very light blue/turquoise
Turcoise Turcoise
Indigo can be described as a deep blue/purple color, similar to the color, blue-violet.
Uhh...please restate your question. There is no letter blue. Blue is a color--one of the primary colors.
BLUE