How to Read Hex Color Codes

Hex Color

What is hex code?

One type of HTML color code that is frequently referred to as hexadecimal color or hex is the hex color code. Hexadecimal numbers are used because they are a human-friendly way to represent values in binary code.

What are the meanings of the letters and numbers in a hex code?

Six letters or numbers are followed by the pound sign or hashtag (#) in hex color codes. The colors red, green, and blue are all represented by the first two letters or numbers. In contrast to RGB, where the color values range from 0 to 255, these values are defined as 00 through FF.

When the value is 1 through 9, numbers are used. When the value is greater than 9, the letters are used. For instance:

Follow these three steps to get a hexadecimal color:

A=10 B=11 C=12 D=13 E=14 F=15

Add 16 to the first number.

Add 1 to the second number.

Combine the two totals.

Understanding RGB Colors in Context Before moving on to reading hex color codes, learning how to comprehend RGB colors is a good place to start. The red, green, and blue light settings of the monitor determine the RGB numbers. You can tell your monitor how much of a particular light color you want to shine by changing the RGB numbers.

How do RGB color codes work?

The following is how colors are displayed in the RGB color system:

The values of red (the first number), green (the second number), or blue (the third number) are defined by RGB (255, 0, 0). The color is not represented in any way by the number 0 and is concentrated to its absolute maximum by the number 255.

As a result, in the example above, you only see the brightest red possible without any green or blue. RGB(0, 255, 0) would be used for green only, and RGB(0, 0, 255) for blue. To get the look you want with other colors, you’ll use a combination of color values.


Between RGB and hex color codes Knowing what the numbers in hex color codes mean will help you figure out what color you might see. The only difference between using a hexadecimal or RGB color is that in CSS, you can also add an alpha value, resulting in a RGBA color. Other than that, there isn’t much of a difference between the two.

If you want to control a color’s opacity, this can be extremely helpful. One of the simplest ways to alter opacity is to add an alpha value to the RGB.

How to read hex color codes

You can move on to learning how to read hex codes once you have a solid understanding of RGB. Once you know the formula, it’s really not that hard. Values 1 through 9 are represented numerically, as previously stated. However, letters take the place of numbers for values greater than or equal to 10.

  • Thus, A = 10, B = 11, C = 12, and so on.
  • As previously stated, there are three quick steps required to calculate the hexadecimal number:
  • Divide the first number, or the number that was converted from the letter, by 16.
  • Divide the second number, or the number that was converted from the letter, by 1.
  • To arrive at a single value, add those two sums together.