We report a two-color magneto-optical trap that continuously operates on the $\left(5s^2\right){}^{1}S_0\text{−}\left(5s5p\right){}^{1}P_1$ and $\left(5s5p\right){}^{3}P_2\text{−}\left(5s5d\right){}^{3}D_3$ transitions in ${}^{88}\mathrm{Sr}$. Owing to the sub-Doppler cooling from the metastable $\left(5s5p\right){}^{3}P_2$ state, a bimodal momentum distribution is observed, with the cold part of the ensemble reaching a temperature of $105\mu \text{K}$. A detailed simulation is established to explain the data. The absolute frequency of the $\left(5s5p\right){}^{3}P_2\text{−}\left(5s5d\right){}^{3}D_3$ transition is measured to be $603976473\pm 2\mathrm{MHz}$ using a frequency comb, improving the literature value. The accompanying magnetic trap is characterized, and is shown to contribute to the sequential production of ensembles with temperatures down to $45\mu \text{K}$.

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• Cold atoms & matter waves
• Cooling & trapping