To me it looks like dark brown to soft black. Dark brown is when there is still glints of colour in the hair and black is just a pigment shade. the picture looks like either a healthy black or dark brown but they can be similar, depends on the lighting.
You want to reach this paticular colour?
This is how you can do it :)
what colour is your hair? and how processed is it?
if your hair is really processed and a muck colour (a colour thats the result of many times of dying your hair) and porus (meaning now when you do dye your hair, and if you leave dye on for too long it turns your hair almost black and course)
Then try a darkest brown or softest black hair dye you can find, so no blue black, purple etc. and keep it on for 10–20 minutes and wash out with a shampoo that has almond oil and/or alot of coconut (you can find decent ones at the supermarket) or you could buy them at a salon depending how much you want to spend or if your hair likes more expensive brands.
For example, my hair is very porus so I only leave hair dye in for a short amount of time (15–20) because porus hair SOAKS up colour fast, and I use supermarket brand shampoos and conditioner because my hair feels nice and mantains healthy. I’ve used more expensive brands of hair care but they dont change my hair alot.
If your hair is an ash colour, a blonde or a lighter brown definitly use darkest brown hair dye and leave it on for as long as the box says so, and wash out with a coconutty conditioner and shampoo. Usually its best to use the conditioner that comes with the box. I prefer Nice and easy 3 colourseal conditioning gloss because it’s always helped keep my hair from getting worse and it’s got coconut as an ingredient, you can even smell it. It’s a good indications theirs coconut in the shampoo, and lots of it if you look for one.
anyway hoped I helped. Good luck!