Yellow Teeth This is the most common color of teeth. A light-yellow color indicates a strong healthy smile. The natural color of your dentin, the layer of tiny tubules that lies beneath your enamel and connects to the dental nerve in each tooth, is yellow. Healthy teeth may go from being slightly yellow to greyish-white, and that depends upon several intrinsic and extrinsic factors. The enamel is semi-translucent. Beneath it lies dentin, the yellowish tissue that ultimately determines the general colour of the tooth. Lots of teeth whitening items on the market suggest that they can lighten teeth by 20 or 30 shades. Check out our chart for more info. Healthy teeth aren't pure white but naturally tinted. As people may think that having healthy teeth means that the teeth are very white, this is not necessarily the case. Natural color range usually go from shades of white up to light yellow color spectrum.