Sunny Hue Used in the Printing Process
Puzzle 9 of City Nicknames Hard Pack
Question is: Sunny Hue Used in the Printing Process
and the answer is: YELLOW
Word Meaning:
YELLOW — The color of sunflower petals and lemons; the color obtained by mixing green and red light, or by subtracting blue from white light; the color evoked by light of wavelength around 580 nm; one of the three primary colors in subtractive color systems.
Definitions from Wiktionary.