What color is Drawing, Deutsch-Wagram (Design for a Garden with an Irregular Shaped Pool) ?

Source Crayola® CSS3 CSS4
#40446c
 
#58427c
cyber grape
#483d8b
dark slate blue
#483d8b
darkslateblue
#7f8092
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#666884
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#272640
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey