The methods of simultaneous and successive, or memory, color matching
have been compared for 10 color reference samples distributed in two g
roups each performed by 50 observers (25 men and 25 women). Our result
s, obtained with a total of two hundred Munsell color chips arrayed on
ten gray cardboard panels, indicate that: (a) while by simultaneous m
atching the mean color differences obtained are, in most cases, lower
than 1 CIELAB unit, those obtained by memory are generally higher; (b)
the worst remembered colors are yellow, light green, blue, and pink,
and the best remembered color is orange; (c) the influence of the dela
y time (15 s, 15 min, and 24 h) is significant for the remembered mean
color (P < 0.03); (d) we find significant men-women differences the r
emembered mean color (p < 0.05). (C) 1998 John Wiley & Sons, Inc.