So just typing "green" is ambiguous. Not my fault that W3C decided to change a couple of color names! And, if you just type "green" it's not clear which color you actually want. I think X11 green, which W3C calls "lime," is the best choice. I'll special-case this in the library... Sigh...
P.S. I'm pretty sure I copied the list from Wikipedia, although I might have just grabbed the rgb.txt from my computer. :~)
P.P.S. Crayons 15-19 are various flavors of pink. I really recommend using the pulldown menu for crayons rather than typing in a name. The names are sometimes weird, but the menu is well-organized by family.