Which color format pair is commonly used in CSS colors?

Which color format pair is commonly used in CSS colors?

• A. #rrggbb and rgb()
• B. rgb() and hsl()
• C. named colors only
• D. CMYK

Answer: (A)

Colors in CSS can be written in several forms, and there isn’t just one way to style every element. The most common pair you’ll see together is the hex notation (#rrggbb) and the rgb() function. Hex codes compress red, green, and blue into six hexadecimal digits, like #4a7f2b, while rgb() expresses those same components with decimal values (or percentages), like rgb(74, 127, 43). This combination has been widely supported for a long time and fits smoothly with many workflows, from quick color tweaks to dynamic styling with opacity via rgba. Other formats, such as hsl(), are also supported, but CMYK isn’t a native CSS color format, and while named colors exist, they don’t form the practical pairing that hex and rgb provide.

Colors in CSS can be written in several forms, and there isn’t just one way to style every element. The most common pair you’ll see together is the hex notation (#rrggbb) and the rgb() function. Hex codes compress red, green, and blue into six hexadecimal digits, like #4a7f2b, while rgb() expresses those same components with decimal values (or percentages), like rgb(74, 127, 43). This combination has been widely supported for a long time and fits smoothly with many workflows, from quick color tweaks to dynamic styling with opacity via rgba. Other formats, such as hsl(), are also supported, but CMYK isn’t a native CSS color format, and while named colors exist, they don’t form the practical pairing that hex and rgb provide.