The STAGGER-grid: A grid of 3D stellar atmosphere models - V. Synthetic stellar spectra and broad-band photometryA. Chiavassa, L. Casagrande, R. Collet, Z. Magic, L. Bigot, F. Thévenin and M. AsplundA&A, 611 (2018) A11DOI: https://doi.org/10.1051/0004-6361/201732147