Is black a color, yes or no?

The answer to whether black is a color depends on context, whether you talk about physics or art. In physics and light, black is not considered a color but the absence of visible light, because when no light is reflected or emitted, we perceive black. In that sense, white is the presence of all wavelengths of light combined. In art, pigments, and everyday language, black is considered a color because it is a visual perception produced by pigments that absorb most light, and we use black paint, ink, and dye as a color. In color models like CMYK for printing, black is treated as a color and included as K. In digital RGB, black is represented as 0,0,0, absence of light, but still a defined color value. So scientifically, black is absence of light, artistically and practically, it is a color. Most people in everyday conversation say yes, black is a color, while physicists might say no, it is absence of color. Both perspectives are valid depending on whether you define color as light or as pigment perception.