Does the wavelength of light absorbed by a complex depend upon extent of splitting or stability?

**Background:** we were doing Crystal Field Theory in school when this question popped up. Specifically we were talking about stability obtained due to the chelate effect and if the extra stability in a complex would affect the wavelength of light it absorbed. 


The exact question is:



> 
> Arrange in decreasing order of wavelength of light absorbed:  
> 
>  $\ce{[Fe(ox)3]}$, $\ce{[Fe(CN)6]^{3-}}$ and $\ce{[Fe(H2O)6]^{3+}}$
> 
> 
> 


If we considered wavelength depending on stability, the answer differed than if we consider splitting only. 


