Yes, the color of an object is determined by the wavelengths of light that are reflected or emitted by the object and detected by our eyes. When we see an object as a particular color, it means that the object is reflecting or emitting light at that specific wavelength or combination of wavelengths.
Now, when we perceive an object as black in color, it means that the object is not reflecting or emitting much visible light across the visible spectrum. Instead, it is absorbing most of the incident light that falls upon it.
Black is the absence or near-absence of reflected or emitted light. Objects appear black when they absorb most or all of the wavelengths of light that strike them and reflect very little or no light back to our eyes. As a result, our eyes perceive the object as lacking color and appearing dark.
It's worth noting that even though an object appears black, it may still reflect a small amount of light at various wavelengths outside the visible spectrum, such as infrared or ultraviolet, which we cannot perceive with our eyes.