In the majority of studies on stochastic resonance,white noise without any time correlation has been used. In this paper, a modified Oregonator-type model, which was proposed to account for the photosensitivity of the R-u(bpy)(3)(2+) catalyzed Belousov-Zhabotinsky reaction in a flow system, is investigated when the control parameter, light flux, is modulated by colored noise near a Hopf bifurcation point. Noise induced coherent oscillations (NICO) are observed, and the signal-to-noise ratio (SNR) goes through a maximum with the increment of noise intensity indicating occurrence of internal signal stochastic resonance (ISSR). In addition, the SNR also shows resonance behavior with the variation of correlation time of colored noise. The aspects of the ISSR in this system are discussed.