Answer:
The most important concept to remember is that you are responsible for your own safety and the safety of others. Most safety practices are common sense. Unfortunately, they can be forgotten or overlooked unless you make safe practices a habit or an instinct.
Split Complementary. A split complementary scheme involves the use of three colors. Start with one color, find its complement and then use the two colors on either side of it. For example, the complement of blue-green is red-orange and the split complement of blue-green would be red and orange.