RAL Effect RAL 660-3

Let’s dive into a full RAL 660-3 paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful RAL 660-3. Find out if this gorgeous cold blue paint color would look great on your living room walls or trims, kitchen cabinet, bedroom accent wall, bathroom or house exterior.

Color code:RAL 660-3
Color name:
Brand:RAL Effect

What are RAL Effect RAL 660-3 undertones?

Blue is RAL Effect RAL 660-3 undertone color, as you can clearly see on the color field below. To determine this undertone we’ve removed all the tints, tones, shades and get HUE (pure color). Seems that undertone definition on a white sheet is already outdated and rather inaccurate


HEX value

HEX value:


RGB code:

81, 165, 184

Is RAL Effect RAL 660-3 cool or warm?

warm colors
Color wheel
cool colors

With a hue of 191° this Blue refers cool paint shade according to HSL (Hue, Saturation, Lightness) on the color wheel.

RAL 660-3 HSL code: 191, 42%, 52%

Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is a percentage value. 0% is a shade of grey, and 100% is the full color.
Lightness is also a percentage value. 0% is black, and 100% is white.

  • Cool Blue shades make a room feel sleek, fresh and modern
  • Cooler hues have a calm and relaxation effect
  • Cool Blue undertones make small spaces feel more open and expansive
  • Cool paint hue are ideal for bedroom or bathroom. Be careful with deep blues and greens in bathroom, which will reflect on your skin.

Act like a pro: Mixing warm and cool shades is a must have to get harmonius interior. Add accents that contrast with the primary color to create visual balance. If your walls are a warm color, don’t forget to add accent in cold colors (furniture, art, décor). A good practice is too use a complementary color scheme.

Color comparison

RAL 660-3 vs Pastel blue RAL 5024

Trying to decide between these two shades? Our comparison highlights the similarities and differences between these two paint colors.

RAL Effect  RAL 660-3 vs RAL Classic Pastel blue RAL 5024Open  RAL 660-3
LRV: 27.26%
Medium color
Temperature: cold
LRV: 28.56%
Medium color
Temperature: cold

RAL 660-3 vs RAL 640-1

Can't decide between these stunning hues? We'll help you compare these two color to find the perfect shade for your home.

RAL Effect  RAL 660-3 vs RAL Effect  RAL 640-1Open  RAL 660-3
LRV: 27.26%
Medium color
Temperature: cold
LRV: 25.69%
Medium color
Temperature: cold