Quote Originally Posted by yotsuffy View Post
A little science by a noob (me):

A color is what our brain tells us when it combines the amount of light our eyes receive through their blue, green, and red receptors.

White, for example, does not exist. Our brain gives it to us as a combination of what it receives from receptors in our eyes. We "see" white because our brain invents it as a combination.

Black is what our brain gives us as a combination when it receives nothing from the blue, green and red receptors in our eyes. The black spriggan is this one. Not a very limited amount of colors that make for a very dark color. A total absence of blue, green, red which makes our brain tell us: "ok, nothing to see!".

In HTML, black corresponds to # 000000. No blue, no green, no red.

An area dyed in spriggan black is an area that neither emits nor reflects back any light. No matter the fabric, wood, dyed metal, it is BLACK.

Any reflection or shine effect could only be due to a varnish or any other surface treatment which would be applied over the black and which would interfere with the surrounding light before the black absorbs it. Not the dyed surface.

Spriggan black
You've actually explained here why Jet Black doesn't present as "Spriggan Black" despite being as black as you can get.
Simply, the texture and therefore the pattern and amount of 'shine' of a piece of equipment is separate to it's colour component, separate to the dye.
The reason clothes dyed Jet Black look grey compared to the Spriggan hat, is because they have texture, the Spriggan hat does not.

They probably can't make a dye any blacker, because dyes don't alter an items texture.