Can anyone help me understand specific colors when represented by hexadecimal values?

Question

I don't understand how I can write yellow using hexadecimal values

Answer 1

its easy like just like rgb
rgb works like this:
rgb(red 0-255, green 0-255, blue 0-255) yellow looks like this here
rgb(255,255,0)

hexadecimal works almost the same

#red green blue

#000000 is black here
#ffffff is white here

the first 2 are red
second 2 are green
the thirth 2 are blue

so if we want yellow (mix of red and green, no blue) we have to write this

#ffff00

little explaination: the values are growing like this:
0-1-2-3-4-5-6-7-8-9-a-b-c-d-e-f
i hope this is explained good enough

Answer 2

why you need hex
i personaly only use hex for specialchars

Answer 3

I just would like to know how to use them even in those special chars #Feichtinger

Answer 4

Thank you Roel I got something! Let me review the Diagram of how these RGB colors are related.

Answer 5

just like the normal specialchars just with a hexvalue
see https://www.w3schools.com/charsets/ref_utf_geometric.asp
for more info

Answer 6

but they unli usefull for the funny ones like ਼