Midnight Black Blue
Try purple and red. Mix with yellow and green. The blue will have a slight purple tint but its a blue.
Mixed grey with black and white. Possibly balancing lightly with blue or purple depending on desired shade and medium.
Mixing blue and black will make a very dark blue.
Purple.
To turn green black, add black.
Mix a royal blue with a bit of black to make navy.
If you are trying to make black paint with blue paint just add an earthy colour (brown) :)
Blue is a primary colour. Black is the absence of colour.
You would get brown
a kind of bluey grey colour
Black or Blue-ish Black
Mixing those colors will result in a neutral gray color.
black and red and pie
Mix a royal blue with a bit of black to make navy.
Yellow + Blue = Green Blue + Red = Purple Red + White = Pink Red + Yellow = Orange Black + White = Grey Adding white to a colour will make it lighter (except red, which makes a completely new colour - pink) Adding a little black to a colour will make it darker.
Navy, depending on how much blue or black you add.
Black or Dark Blue