Colors

Question 1

What is the shorthand syntax for hexadecimal colors in CSS?

Answer 1

Hexadecimal notation for RGB with a six-digit sequence (e.g., #RRGGBB).

Question 2

What does the range “0-9, A-F” represent in hexadecimal color values?

Answer 2

The range used to represent the values for each of the primary colors (red, green, blue) in hexadecimal format.

Question 3

What does a six-digit hexadecimal color value translate to in RGB?

Answer 3

It is translated to RGB numerical ranges from 0-255 for red, green, and blue.

Question 4

How is alpha transparency represented in a hexadecimal color value?

Answer 4

Alpha transparency is represented by two additional hexadecimal digits (e.g., #000000BF).

Question 5

What is the hexadecimal representation for 0% alpha transparency?

Answer 5

00000000.

Question 6

What is the hexadecimal representation for 75% alpha transparency?

Answer 6

000000BF.

Question 7

What is the function used to define RGB colors in CSS?

Answer 7

rgb() color function.

Question 8

What range of values can be used in the rgb() function for each color component?

Answer 8

Values from 0 to 255.

Question 9

What range of values can be used in the rgb() function using percentages?

Answer 9

Percentages from 0% to 100%.

Question 10

What is the purpose of the rgba() function in CSS?

Answer 10

It defines colors with an alpha (transparency) value, which can be expressed as a percentage or decimal.

Question 11

What is the CSS syntax for defining a color with 50% alpha using rgba()?

Answer 11

rgba(0, 0, 0, 50%).

Question 12

What is the decimal equivalent of 50% alpha transparency in the rgba() function?

Answer 12

rgba(0, 0, 0, 0.5).