Mattel Inc. has gotten to the heart of one of its problems: Too many reds aren’t a good thing.

The company’s designers until recently could choose from about 150 types of red when making Barbie dolls, Hot Wheels cars or other toys in its stable. Ink types from glossy to waterproof multiplied the options. Each variation added storage costs and downtime at factories for cleaning equipment to swap out shades.


Join Wall Street Journal For Just $1