Google Plus HTML Hex, RGB and CMYK Color Codes

Blue

PANTONE: PMS 660 C
Hex Color: #4285F4;
RGB: (66,133,244)
CMYK: (88,50,0,0)

Red

PANTONE: PMS 7619 C
Hex Color: #DB4437;
RGB: (219,68,55)
CMYK: (0,78,85,12)

Yellow

PANTONE: PMS 123 C
Hex Color: #F4B400;
RGB: (244,160,0)
CMYK: (0,20,90,0)

Green

PANTONE: PMS 7724 C
Hex Color: #0F9D58;
RGB: (15,157,88)
CMYK: (82,0,67,11)