How can i obtain color "yellow" using hexadecimal values.

Answer 1

#FF0

Answer 2

#FF0000 is red, #00FF00 is green. In the additive color model, green and red are together yellow: #FFFF00
or in rgb:
rgb (255, 0, 0) --> red
rgb (0, 255, 0) --> green
rgb (255, 255, 0) --> yellow

Answer 3

#FFFF00