Blending Mode Color Burn

[MahaB82A]

When background is black color blending mode color burn hide the text but when background is white color blending mode color burn shows the text. What is reason behing this? video also uploaded.

[Pariah Burke · Accepted solution]

That's correct and expected behavior. Color burn darkens the base color (the layer below) to reflect the blend color (your red "a" in this case), by “burning” the darker areas even darker, and you can't make black any darker.

[MahaB82A]

Thanks for the explanation.

So that "a" in the second screenshot also should become dark when blending mode color burn applied. Why does not it become dark? or if it is blend with background white color, it should become white.  

[Ton Frederiks]

According to the specification:

“ColorBurn: Darkens the backdrop color to reflect the source color. Painting with white produces no change”.

That also means that a full Red, Green, Blue or Cyan, Magenta, Yellow and Black background cannot be darkened and will show no change.

[MahaB82A]

This is to confirm. Are you sure what you say?

[Ton Frederiks]

Yes, an RGB black in an RGB document and a 100% K black in a CMYK document does not get darkened.

Just try it.

[Kurt Gold]

Please share a sample Illustrator file (preferably the one you used in your video).

I guess your white background object/path is not pure white, but let's see.

[MahaB82A]

Here is the file.

Color Burn