Here is tolerance values that used for comparing results of the color transformations with ones obtained from original Kodak color management system:

Color Space Tolerance

sRGB 3
LINEAR_RGB 7
GRAY 11
PYCC 46
CIEXYZ 48
There are some quality problems with following color spaces: GRAY(not so noticeable), PYCC and CIEXYZ. Because of that following regression test is using large tolerance values for checking the result of transformations:

test/sun/java2d/cmm/ColorConvertOp/ColConvCCMTest.java