Comparison of the spectrum and photometry of HD 206893b (pink dots) to that of the L7 red dwarf PSO_J057.2893+15.2433 (bottom, Liu et al. 2013) and the L0 optical standard dwarf 2MASP J0345432+254023 (top, Kirkpatrick et al. 1997) reddened by a layer of forsterite grains with mean sizes of 0.50 and 0.40 μm, respectively. The mean flux of the reddened template spectrum is re-normalised to fit that of the companion. The G map is overlaid in the lower right portion of the plots.