AT&T COLOR PALETTE (AT&T brand reference, public sources, Oct 2026)

primary    AT&T Blue                  #009FDB  RGB 0, 159, 219
primary    Black                      #000000  RGB 0, 0, 0
primary    White                      #FFFFFF  RGB 255, 255, 255
secondary  AT&T Cobalt                #00388F  RGB 0, 56, 143
secondary  Cobalt 600                 #0057B8  RGB 0, 87, 184
secondary  Functional Blue            #0072B2  RGB 0, 114, 178
secondary  Dark Brand Background      #002837  RGB 0, 40, 55
secondary  Gray 800                   #1D2329  RGB 29, 35, 41
secondary  Gray 700                   #454B52  RGB 69, 75, 82
secondary  Gray 500                   #878C94  RGB 135, 140, 148
secondary  Neutral Background         #F3F4F6  RGB 243, 244, 246
secondary  Accent Background          #F2FAFD  RGB 242, 250, 253