Klein blue and red color combination

Quick answer：

Klein blue and red are two distinct colors with different hues and intensities. Klein blue, also known as International Klein Blue, is a deep, almost electric blue with a strong, vibrant color. Red, on the other hand, is a warm, intense color that can range from a bright, fiery shade to a deep, rich crimson. Combining Klein blue with red can create a striking contrast or a harmonious blend, depending on the proportions and context.