X-rays are not associated with a specific color that can be seen by the human eye. The color of light that we perceive is determined by its wavelength, but X-rays have wavelengths that are much shorter than the visible light spectrum.
X-rays have wavelengths ranging from approximately 0.01 to 10 nanometers (nm), which is significantly shorter than the wavelengths of visible light, which range from around 400 to 700 nm. Due to their extremely short wavelengths, X-rays are beyond the range of what our eyes can detect.
Instead of having a specific color, X-rays are used for medical imaging and other applications because they have high energy and can penetrate through soft tissues and materials that are opaque to visible light. X-ray images are typically displayed in shades of gray or black and white, representing the varying intensity or density of the objects being imaged.