. 2020 Oct 27;25(5):3237–3247. doi: 10.1007/s00784-020-03654-1

Table 2.

Means and standard deviations of ΔL*, Δa*, Δb*, ΔE, and the associated color perception for all conditions in the first group gp-1-PH/lc relative to baseline values

CIELAB	T1min/1×	T5min/1×	T1min/5×	T5min/5×	T24h/5×
ΔL* Color perception	2.86 Lighter	3.98 Lighter	3.31 Lighter	4.00 Lighter	4.40 Lighter
Δa* Color perception	− 0.75 Less red	− 1.01 Less red	− 0.94 Less red	− 1.29 Less red	− 1.23 Less red
Δb* Color perception	− 1.42 Less yellow	− 1.84 Less yellow	− 1.76 Less yellow	− 2.57 Less yellow	− 2.25 Less yellow
ΔE	4.12 (3.98)^a	5.22 (5.35)^a	4.72 (4.84)^a	5.81 (5.42)^a	6.42 (6.31)^a

CIELAB

T1min/1×

T5min/1×

T1min/5×

T5min/5×

T24h/5×

ΔL*

Color perception

2.86

Lighter

3.98

Lighter

3.31

Lighter

4.00

Lighter

4.40

Lighter

Δa*

Color perception

− 0.75

Less red

− 1.01

Less red

− 0.94

Less red

− 1.29

Less red

− 1.23

Less red

Δb*

Color perception

− 1.42

Less yellow

− 1.84

Less yellow

− 1.76

Less yellow

− 2.57

Less yellow

− 2.25

Less yellow

ΔE

4.12 (3.98)^a

5.22 (5.35)^a

4.72 (4.84)^a

5.81 (5.42)^a

6.42 (6.31)^a