Blue color chart
Color swatches and hexadecimal code for the pure blues
The last two hexadecimal integers control the blues. The pure blues are: 0000ff, 0000cc, 000099, 000066 and 000033
 
0000ff
 
0000cc
 
000099
 
000066
 
000033
Other color charts Also, the Html color code tester allows you to preview every color