Orange

From Wiki:

The colour orange occurs between red and yellow in the visible spectrum at a wavelength of about 585 – 620 nm, and has a hue of 30° in HSV colour space. The complementary colour of orange is azure, a slightly greenish blue. With pigments such as paints or inks, a mixture of the subtractive primary colours in the proportion of 75% yellow and 25% magenta produce the secondary colour orange. Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light.

Aren't you glad you know that???
I'm sure you can find ways to slip that information into "casual" conversation!

Love, Laughter, Peace, Blessings and ORANGE!!