I have been working on trying to paint and colour match from life in low light conditions (like dusk). I live in northern europe have been interested in representing the interesting lights (much like the lighting in a 19th c. Hague school landscape). I have tried a number of experiments such as:
1) illuminating my colour checker and painting the colour where it goes on an unlit neutral toned canvas (painting ugly)
2)illuminating the canvas also (the contrast between lightings can be distracting but this works ok too)
3) simply match colour in weird light (fun but unsatisfying result).
4)trying to memorise or roughly annotate the shades from life and bringing them back to my studio (meh)
5) take a photo (works but lacks some of the spontaneity)
So far, illuminating the colour checker with an LED of the same light frequency as a studio works the best (controlling for glare), but considering this question is as old as painting I figure someone here might have a better idea.
Thank you in advance.