Royal blue contains a color intensity of 0 red, 35 green and 102 blue, based on the RGB color intensity scale. The RGB scale assigns a value from 0 to 255 based on the intensity of red, green and blue light within each color.
According to Find the Data, commercial paint products by Sherwin Williams and Pantone are available in the royal blue color. Sherwin Williams "Loyal Blue" is 92 similar to royal blue, while Pantone's number 281 paint is a 97 percent match. Shades of blue similar to royal blue include dark blue, navy blue and air force blue.