Are there any “Crossover Colors” for Type 2 & Type 4?

I have a type 2/4 sister. I’m a 4/1. She and I sometimes borrow each other’s silver shoes. Is silver the only crossover color between 2 & 4’s though? We already know both can wear navy. Wouldn’t there also be crossover colors in some of the darker greens and charcoals? I have a pair of dark green pants that I love. There is a slightly subdued quality to them, but they look bold next to stark white and pass the reflective silver test. They don’t work on me if I wear navy or black because there isn’t enough contrast, but they seem to work well with a white t-shirt and my lab created emerald and silver necklace. I loaned them to my sister while I was pregnant. She typified them with a true type 2 green shirt, a grey flowy sweater, and long antique silver necklace. So now I’m wondering if my jeans really are a crossover green or if it’s wishful thinking on my part and they’re type 2. I’m also surprised about Kalista’s type 4 sweater. I never would have picked it because it isn’t blackest black. I guess the sheen pushes it over from subdued charcoal to black and silver.