A pretty lavender to you and me may be a dull gray to others. A number of interior designers in this field feel very strongly about making colors more intense so that older residents have a better chance of seeing and appreciating them. Where contrast is lacking and there is little you can do to modify colors in your home, take advantage of colored electrical tape. This is one of my favorite products and among the least expensive. All using inexpensive, colored electrical tape.
Color plays a major role in reflecting light.
As people get older, they need two to three times the amount of light than when they were younger. Lighter colors reflect more light. A brighter room is also easier to see and understand. Glare is a silent nuisance and upsetting for many with Alzheimer's disease. They experience the discomfort, but cannot do anything about it or even figure out why they are uncomfortable.