Blue
 
About these coordinates     Color coordinates
Hex triplet#0000FF
sRGBB (r, g, b)(0, 0, 255)
HSV (h, s, v)(240°, 100%, 100%)
CIELChuv (L, C, h)(32, 131, 266°)
Source[Unsourced]
B: Normalized to [0–255] (byte)

Blue can be used to refer to any color from cyan to navy, though its standard hex color is #0000FF (0/0/255), the brightest possible shade of blue. However the standard hex code is rarely used for blue in most cases.