Colour-magnitude and colour–colour diagrams showing the sequence of field dwarfs (coloured circles), a range of young, imaged brown dwarf and exoplanet companions (black symbols) and HIP 65426 b (red circle). HIP 65426 b falls near objects with mid-L spectral types, but is more luminous and with redder colours than the field sequence. This matches the trend seen for other young objects with similar spectral type.