Plant Extract Saturation Hue Chroma Color Square Supplementary Table 1: Plant Extract Color Analysis. Color squares of the eleven plant extracts with their respective saturation, chroma, and hue angle measurement from tintometer readings. Plant Extract Saturation Hue Chroma Color Square Purple carrot 2.01 ± 0.01a 28.87 ± 0.16c 68.84 ± 0.02b Black rice 1.99 ± 0.08a 31.03 ± 0.94c 62.17 ± 0.48c Sweet purple potato 1.84 ± 0.04a 19.61 ± 1.67d 71.85 ± 0.07a Purple grape 1.03 ± 0.10b 10.10 ± 0.69e 37.62 ± 1.13d Red grape 0.74 ± 0.09c 7.24 ± 0.21f 33.88 ± 1.71e Black lentil 0.31 ± 0.01d 2.79 ± 0.05g 23.82 ± 0.52f Black bean 0.31 ± 0.02d 7.57 ± 0.42ef 23.48 ± 0.90f Sorghum 0.15 ± 0.00de 85.80 ± 0.26a 12.62 ± 0.17g Black Peanut 0.08 ± 0.01e 20.09 ± 0.09d 7.46 ± 0.58h Purple bean 0.06 ± 0.01e 19.94 ± 0.20d 5.31 ± 0.48hi Blue wheat 0.04 ± 0.00e 56.67 ± 0.45b 3.80 ± 0.14i Letters indicate statistical difference among extracts per color criterion (p <0.05).