I used Jacquard acid dyes and used about 2 teaspoons. The red is Crimson.
The only green I had was Chartreuse (used 2 tsp), which was a bit of a spring green so I added some Sapphire Blue (used 1/2 tsp) to darken it up.
Here are both after the dyeing is complete. I have put them in the wash machine to felt. The colors are delicious, especially the red.