Table 2 L*a*b* ranges divided into 4 equal segments and percentage of subjects belonging to each segment (the highest percentages of subjects are underlined in corresponding L*, a* and b* segments).

From: Color Range and Color Distribution of Healthy Human Gingiva: a Prospective Clinical Study

L* Range/Percentage

a* Range/Percentage

b* Range/Percentage

37.2 to 43.8/5.9

13.4 to 17.9/5.5

9.2 to 12.3/8.8

43.9 to 50.5/23.1

18.0 to 22. 5/36.1

12.4 to 15.6/59.3

50.6 to 57.2/51.7

22.6 to 27.0/47.1

15.7 to 18.9/29.4

57.3 to 64.0/19.3

27.1 to 31.7/11.3

19.0 to 22.2/2.5

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