Comparison of slopes of PL relations at different wavelengths. The slopes of the Sloan band PL relations are compared with empirical (gri) and theoretical (griz) PL relations from Narloch et al. (2023) and Di Criscienzo et al. (2013), respectively. The slopes of the G, BP, RP, V, I, J, H, and K_s band PL relations are from Breuval et al. (2022), Trentin et al. (2024), and Bhardwaj et al. (2023). The shaded regions display the ±1σ standard deviation around the mean value of the slopes for the wavelengths under consideration.