# Where is visible light located on the electromagnetic spectrum?

Around $\text{400 - 700 nm}$ wavelength, or a frequency of $7.50 \times {10}^{14} - 4.28 \times {10}^{14} {\text{s}}^{- 1}$, or a wavenumber of $25000 - {\text{14286 cm}}^{- 1}$:
Here, $\textcolor{red}{\text{red}}$ has the longest wavelength and $\textcolor{p u r p \le}{\text{violet}}$ has the shortest wavelength.