A colored glass sheet of aluminosilicate composition chemically strengthened by ion exchange, includes the following oxides in the weight content ranges defined below: SiO2 between 59.20 and 68.00%; Al2O3 between 2.00 and 8.00%; MgO between 6.00 and 9.00% when the Al2O3 content is between 5.00 and 8.00% and when the SiO2/Al2O3 ratio is greater than or equal to 7.8 or between 8.00 and 10.00% when the Al2O3 content is between 2.00 and 5.00% and when the SiO2/Al2O3 ratio is greater than or equal to 24; Na2O between 9.00 and 16.00%; K2O between 5.00 and 11.00%; B2O3 between 0 and 3.00%; CaO between 0 and 1.00%; and the following coloring agents in the weight content ranges defined below: Fe2O3 total between 0.05 and 6.00%; CoO between 0 and 2.00%; NiO between 0 and 1.00%; Se between 0 and 0.10%, and the glass having a redox factor of between 0.10 and 0.65.