The hex color #64621a is a dark color. The web-safe version is Hex
#666633. A complementary color is
#9B9DE5. The grayscale version is
#4B4B4B. A 20% lighter version of the original color is
#97954D, and Hex
#312F00 is the 20% darker color. If the color is saturated by 10%, you get
#676415. If the color is desaturated by 10%, the color
#61601F is obtained.