Results of optical and EPR-experiments on color centers in additively and substractively colored SrCl2 single crystals are reported. In additively colored crystals F-centers could be obtained only after extremely rapid quenching. It was found that in crystals doped with O2- even with the very high quenching rate it was impossible to produce F-centers. The F-centers were detected both optically and with EPR and these experiments indicate that in SrCl2 the F-band is located at about 630 nm. Superimposed on the F-center EPR-signal consisting of 15 lines a narrow EPR-line was observed, which is probably due to conduction electrons in very small Sr-precipitates. Our pure crystals could not be colored with X-rays at RT, LN2T and LHeT, indicating a high purity especially with respect to O2--impurities. These ions were found to enhance the colorability considerably. At very low O2--concentrations the crystals could be colored at LHeT but as the O2--content is increased further also radiation damage can be observed at temperatures as high as 140 K. The centers formed are mainly VK and perturbed F-centers. The VK-centers can be aligned along ; the perturbed F-centers along at LN2T and LHeT. Similar experiments have been performed on SrCl2 doped with : NaCl, YCl3 and SrH2.