Artificial dyes are often used in processed foods and significantly contribute to the acceptance of the product, turning it sensorily more attractive. However, the exaggerated consumption of the additive can cause adverse effects to one’s health. The aim of this study was to quantify bright blue dye and indigotine blue dye in beverages. Four different brands of powder for beverages grape flavored were analyzed. There were randomly chosen 3 different lots, previously analysed in triplicate, for each one of them. The extraction of the dyes for the quantification was done in methanol ammonia 5%, after this stage the spectrophotometric analysis was done, using the Sensient Colors Latin America, Lerma, México patterns, in the wavelength 610 nm for indigotine blue and 630 nm for bright blue. The results were analyzed by ANOVA and the Tukey test (p < 0.05). In the brands 1, 2 and 4 were respectively found 12.79 mg. 100 g-1, 12.75 mg. 100 g-1 and 0.27 mg. 100 g-1 of bright blue, the brand number 4 was the only that did not go over the law established maximum limit (10 mg. 100 g-1 ). Although it was written on the label it was present, the tests showed that there was no bright blue dye in the number 3 sample. As for the indigotine blue found in the brands 3 and 4 were found the average concentrations of 73.01 mg. 100 g- 1 and 25.62 mg. 100 g-1, respectively. Both brands also went over the law established maximum limit (10 mg. 100 g-1), but brand number 3 overcomes the limit more than 7 times. The results show the excessive use of blue powder food dyes grape flavored in beverages.