Can you please help me understand this sentence: “If you do the math, the two digits for one color equal 16 times 16, which gives us 256 total values.”

I think I am missing something here, and I don’t want to neglect it and move forward.

Can you please help me understand this sentence: “If you do the math, the two digits for one color equal 16 times 16, which gives us 256 total values.”

I think I am missing something here, and I don’t want to neglect it and move forward.

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Welcome, sisbws.

It might help, if you expanded on what you are not understanding…

For the colour value used in web-development, you have a few options to define it.

- RGB (decimal) - a set of
**3**numbers, each ranging from 0 to 255 (a total of 256 numbers each).

```
/*Use Case*/
h1 {
color: rgb(0,255,0); /* This is green */
}
```

- RGB (hexadecimal) - a set of
**6**characters, made up of the letters**a**to**f**, and the numbers**0 to 9**.**0**being the lowest (similar to**0**above) and**f**being the highest (similar to**255**above). So, if your options are made up of**6**letters, and**10**numbers, you have**16**for each digit.

```
h1 {
color: #00ff00; /* This is green */
/* The above can also be written: #0F0 */
}
```

The difference is that, each of the *RED, GREEN, and BLUE* components is comprised of **2** characters. So, **#FF** (case does not matter, as far as I know) is the same as **rgb(255)**, and **#00** is the same as **rgb(0)**.

Hope this helps

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First of all, thank you for the reply.

I was not getting that two digit point mentioned above in my post.

This really helped me understand it now. A hex code consists of two digits for Red, Green and Blue. The max number in that code is FF, which gives us 16x16 = 256.

Can you let me know if I have understood it correctly?

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That is exactly it! An easier way to understand it:

0 -> 1

1 -> 2

2 -> 3

3 -> 4

4 -> 5

5 -> 6

6 -> 7

7 -> 8

8 -> 9

9 -> 10

A -> 11

B -> 12

C -> 13

D -> 14

E -> 15

F -> 16

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