Table 3.

Mean values of ΔL*, Δa*, Δb*, and the associated color perception for the first and second groups, gp-1-PH/lc and gp-2-VS, after application and storage for 24 h

CIELAB	gp-1-PH/lc-T5min/5×	gp-2-VS10min	gp-1-PH/lc-T24h/5×	Gp-2-VS24h
ΔL* Color perception	4.00 Lighter	5.73 Lighter	4.40 Lighter	6.73 Lighter
Δa* Color perception	− 1.29 Less yellow	− 0.99 Less yellow	− 1.23 Less yellow	− 2.51 Less yellow
Δb* Color perception	− 2.57 Less red	− 1.36 Less red	− 2.25 Less red	− 3.99 Less red
ΔE	5.81 (5.42)a	6.72 (8.46)a	6.42 (6.31)a	9.01 (8.07)a

Matching letters for pairs of columns (first two columns and last two columns) denote no statistically significant difference between them