Table 3.

Color coordinates, L, a, b, and ΔE of hair tresses dyed with commercial hair color Igora Royal Silverwhite Dove Grey (n = 5). SD: standard deviation.

Number of Hair Washes of Dove Grey
Color Coordinates	6 SD	12 SD	18 SD	24 SD	30 SD
L	45.59 ± 0.37	49.47 ± 0.93	49.6 ± 1.2	50.01 ± 0.76	50.28 ± 1.12
a	1.4 ± 0.08	1.7 ± 0.1	1.69 ± 0.15	1.72 ± 0.09	1.84 ± 0.05
b	5.7 ± 0.24	7.59 ± 0.19	7.89 ± 0.22	8.26 ± 0.31	8.31 ± 0.29
ΔE	5.92 ± 0.4	10.24 ± 0.8	10.49 ± 1.08	11.01 ± 0.64	11.2 ± 1.03