Blue Wool
Blue Wool (Wool) is a Minecraft block with color #25408F / RGB 37, 64, 143. See it in the pixel art generator.
HEX
#25408F
RGB
37, 64, 143
Palette group
Wool
How to get this block
Shear sheep (or craft from string) for wool, then dye it the target color. Softer, slightly brighter tones than concrete.