Royal blue is a deep shade of blue characterized by its vividness and slight brightness. According to W3C, the royal blue hex color code is #4169E1.
RGB, CMYK and Pantone colours explained — Hello Lovely
Name Badges Frequently Asked Design Questions
Glidden Mb Royal Blue Precisely Matched For Paint and Spray Paint
Everything about the color Royal Blue
Colors, UF Brand Center
Color Models Explained: RGB, CMYK, PMS? What the HEX?
Ball Corporation Brand Color Codes »
Colors, UF Brand Center
CrowdFlower Dark Royal Blue - #1a459c color code hexadecimal
CMYK & RGB – Understanding Your Color Modes
About Royal Blue (web) - Color codes, similar colors and paints
Curaçao flag color codes
100+ Shades of Blue Color (Names, HEX, RGB, & CMYK Codes
Ultimate Guide to Color in UX/UI Design