It used to describe that some people don't look good in clothes, because red and green are not harmonious at all, indicating that the level of people wearing clothes is not high, which is a bit degrading. But now, because the combination of red and green can be accepted by everyone, there is a saying that "even if red is matched with green, life will continue."

Note: From the perspective of chromatics, red and green are opposites. Their relationship on the color circle is completely separated by 180 degrees. Red and green are mutually exclusive and complementary colors. This means that putting red and green together will produce strong visual contrast, make the color contrast reach the maximum brightness, and strongly stimulate the sensory organs.

Therefore, the next sentence of "red with green" is "ugly in the pocket", but as long as red and green are properly blended, such as adjusting the area of the two and emphasizing the master-slave relationship, they can be beautiful in terms of color brightness and purity.

In fact, this sentence has many meanings. It used to be used to describe some people's clothes, because red and green are not harmonious at all, indicating that the level of people who match clothes is not high, which is a bit demeaning.

But now because the combination of red and green can be accepted by everyone, there is a saying that "even if red is matched with green, life will continue", which is actually taken from the old saying, meaning that even if you encounter unsatisfactory things in life, you should treat them with the right attitude and live a good life.