Quote: Get a BIG box of crayons and ask him to pull out all the various blues. Then tell him it is like that (or ask him which one [of all the blues in your hand] is blue). Or if he is a techie, have him go into word and select the colour for a font; click on "More Colors"; select a medium blue then click on "Custom." And tell him it is like that. If (and I doubt it or he wouldn't have a spinning head, lol) he has a scientific bent, sent him to The Coop to read some of the genetic discussions on blue.
Lol wish I could do this with her.. But shes to literal right now and since our cupcake looks really close to our muffin which is black that's all she sees lol but maybe when she's a little older....
Get some (dark) blue ink or dye and ask her what colour it looks like. Then have her add drops of water to see how it dilutes into blue. Alternatively have her dip the edge of a coffee filter in the ink or dye and watch it spread up into the filter, diluting as it travels further.