White balance and chromatic aberration are mostly unrelated.

White balance (often called color balance) is a global color correction used to compensate for the color of the light illuminating the scene. Its goal is to make neutral subjects look neutral, as they do to our eyes. If white balance is wrong, the whole image tends to have an overall color cast.

Chromatic aberration is a lens artifact. It happens because a lens bends different wavelengths of light by slightly different amounts, so colors do not focus in exactly the same place. This can show up as colored fringes or reduced sharpness, especially around high-contrast edges.

So the key difference is:

• White balance error: usually affects the entire image globally as a color cast.
• Chromatic aberration: usually affects fine detail locally, especially edges, due to lens optics.

A lens can influence color rendering to some extent, but white balance is primarily about the lighting and the camera or post-processing correction, not the same phenomenon as chromatic aberration.