This image from 1921 illustrates the restraint in kitchen design. The advertisement is for Lucas enamel paint, which was lead-based white paint and it wore like cast iron for decades. As long as children and pets were prevented from chewing on it, it performed well surviving the scrubbing of the most diligent homemakers.
The color schemes were often light with one or two saturated colors incorporated. This kitchen has a dark blue checkerboard floor and large checkerboard curtains.
Most often kitchens were decorated for ease of cleaning as germ theory was still fairly new and health was at the forefront of everyone’s mind as the 1918 Spanish flu epidemic was still a recent memory.