jc1RGB vs ProPhoto RGB

                     ProPhoto        jc1RGB

Similarities

1. Basic Property    Matrix/TRC        Matrix/TRC

2. White                D50               D50

Differences

1. Gamut volume    2,429,670           1,929,506          

2. Gamma              1.8                2.2

3. Primaries     2 primaries are       All 3 primaries are

                 outside visible       within the visible locus
                 locus

Is jc1RGB Perfect Color Space compliant?
Yes.  Refer to here for related information about Perfect color Space family.