Pink + Blue = Pale Violet or Magenta
In color combination, analyze first the given colors.
"Pink" is a shady color of red, and red is a primary color. "Blue" is a primary color too. Now, if we combined the two colors, the answer will be secondary color. Hence, RED + BLUE = VIOLET.
But, red is not given; Hence, it's pink. Pink is lighter then red, that's why you must put adjective on your answer. If you can think color(s) that has/have the same color of your answer, then it can be your another answer.
Note: You must be familiarize with "Color Wheel".
YELLOW + BLUE = GREEN
- Primary and Primary is equals to Secondary Colour
GREEN + VIOLET = BLACKISH BROWN
- Secondary and Secondary is equals to Major Colour