Understanding how Hex To Dec works

1. HEXTO DEC
How to take a Hex number and get a
decimal RGB value.

2. HEX
■ The hexadecimal numeral system,
often shortened to "hex", is a
numeral system made up of 16
symbols (base 16).The standard
numeral system is called decimal
(base 10) and uses ten symbols:
0,1,2,3,4,5,6,7,8,9. Hexadecimal us
es the decimal numbers and six
extra symbols.

3. HERE IS A
CHART OF
THE BINARY
TO HEX
CONVERSIO
N

4. Chart of Hex to Dec
■ Note hexadecimal is 0-15
■ With A starting at 10
■ Ending with F at 15

5. Pixel= 3bytes
Note:They are called
Additive colors they do
not mix like inks or paints.
See Red and green make
yellow.
Pixels are made of 3 colors

6. BR G
1 Byte 1 Byte1 Byte
8 Bits 8 Bits8 Bits
0-255 0-2550-255
11111111 Light 11111111 Light11111111 Light
00000000 Dark
= 24 Bits of color
00000000 Dark 00000000 Dark
256 × 256 × 256 = 2563
= 16,777,216 possible color
combinations
16 Million Colors
Because each of the three colors can have values from 0 to 255 (256 possible values), there are:
(and this is why you see claims of "16 Million Colors" on computer equipment)

7. 7DE is a shortcut hex number
7DE = (7 * 162) + (13 * 161) + (14 * 160)
7DE = (7 * 256) + (13 * 16) + (14 * 1)
7DE = 1792 + 208 + 14
7DE = 2014 (in decimal number) for 7DE