Hello, I stopped coloring my hair about 8 months ago because of the toxicity of hair dye. I was using Natural Instincts hazelberry which covered my gray fine and matched my natural hair color. Now that my gray has come in, it is quite dark (steel gray) and even looks blue in the sunlight. I would estimate that I am about 25 to 30 percent gray. I am thinking that I would like to try using one of your home kits to color the gray to a lighter shade so that it looks like highlights. What color would you recommend?