The invention relates to blue colored sodiocalcic glass. It contains 0.15 to
1.1 wt. % Fe2O3, has a redox that does not exceed 45%, exhibits
a dominant wavelength (D) in the range of 490 and 493 nm and
a luminous transmission (TLA4) in addition to an excitation purity (P) satisfying
the relation P-0.3TLA4+24.5. The inventive glass is particularly suitable
for windscreens, side windows and rear-window defoggers in motor vehicles and glazing
in buildings.