Hello,
Use the Cinema/Theater/Movie picture preset on both monitors, they need to be identical. At most, they'll be about 10% off, but shouldn't be nearly as bad. If they still are, you're probably a victim of panel outsourcing. This means that companies are using panels that likely, in most cases don't even meet their own quality standard.
In most cases however, when people have posted pictures of their two monitors. I found that majority of cases both monitors are displaying inaccurate colors, what they think is white is infact slightly blue, or magenta, or even green tint. However, the picture preset should do the trick.
All the best!