buy it in a shop
green
Blue and red colouring
A blue, purple or maybe even green or yellow colouring of the affected area. It will also be painful to touch.
Pink food colouring of course! and blue food colouring because there's blue cotton candy too
Green is composed of the colors Yellow and Blue. So adding blue to green would just make a darker green. Looks like pee (urine) though.
Adding methylene blue to a slide will stain animal cells and make the nuclei more visible.
Blue.
Nothing can make blue. Blue is a primary color and cannot be mixed from any other combination of colors.
since green is the combination of blue and yellow, adding more yellow to green would make it a yellow-green.
Adding a small amount of additional blue coloring can make the drink appear more blue than green. However, there is no way to negate the yellow tint that green has but blue does not. Adding the complementary color (purple) will not remove the yellow but only make the drink a dark brown or black.
Adding a green dye or mixing blue and yellow liquids can turn a liquid green.