Where to Find the Colors Your Screen Can't Show You

# Summary Most colors visible to the human eye cannot be displayed on digital screens, particularly cyan hues, because screens use three primary colors (red, green, blue) that can only stimulate the three types of cone cells in human eyes to a limited degree. The CIE chromaticity diagram reveals that a significant portion of cyan and blue wavelengths fall outside the triangle formed by standard primary colors, making them impossible to reproduce through color mixing on screens. To experience these "missing" colors, you must observe them in the physical world rather than through digital displays.