Table I.

Means (standard deviations) of CIE L*, a*, and b* values for Vita Lumin shade guide

Shade	L*	a*	b*
A1	82.4 (1.9)	−1.4 (0.4)	14.3 (0.7)
A2	79.1 (1.1)	0.6 (0.3)	19.2 (0.5)
A3	77.6 (0.9)	1.0 (0.3)	21.0 (0.9)
A3.5	73.4 (1.2)	2.3 (0.1)	24.5 (0.6)
A4	69.0 (0.9)	2.4 (0.6)	25.4 (0.8)
B1	80.1 (2.3)	−1.9 (0.5)	12.6 (0.9)
B2	80.1 (2.2)	−1.0 (0.5)	18.2 (1.0)
B3	74.8 (1.4)	0.9 (0.5)	25.0 (0.9)
B4	75.5 (2.7)	1.0 (0.2)	26.1 (1.8)
C1	76.6 (0.9)	−0.7 (0.2)	14.2 (0.8)
C2	72.7 (0.4)	0.2 (0.3)	20.0 (0.4)
C3	70.5 (0.9)	0.8 (0.1)	19.1 (0.5)
C4	64.2 (1.2)	2.6 (0.2)	22.1 (0.5)
D2	74.9 (1.5)	−0.4 (0.4)	13.2 (0.8)
D3	74.7 (2.6)	1.1 (0.4)	18.3 (0.9)
D4	73.5 (0.7)	−0.6 (0.2)	21.1 (0.5)