The original purple was 2 teaspoons of Rit Purple into a Pyrex breadpan full of just boiled water then a five minute soak flipping every thirty seconds.
L to R all with same quantity of water and soak times:
1 teaspoon Purple, 2 teaspoons Aquamarine. This is as close as I think I can get with these two colors.
1 teaspoon Purple, 1-1/2 teaspoons Aquamarine.
1 teaspoon Purple, 1 teaspoon Aquamarine.
1 teaspoon Purple, 1/2 teaspoon Aquamarine.
I started with less Aquamarine and increased it each time. All in all, I'm pretty pleased with the result.