The hex color #61d1ef is a light color. The web-safe version is Hex
#66CCFF. A complementary color is
#9E2E10. The grayscale version is
#B6B6B6. A 20% lighter version of the original color is
#94FFFF, and Hex
#2E9EBC is the 20% darker color. If the color is saturated by 10%, you get
#59D4F5. If the color is desaturated by 10%, the color
#69CEE9 is obtained.