Question 1

What CSS color formats are supported?

Accepted Answer

Named colors, HEX (3/6/8 digit), rgb(), rgba(), hsl(), hsla().

Question 2

How do I add transparency in CSS?

Accepted Answer

Use rgba() or hsla() with alpha value, or 8-digit HEX (#RRGGBBAA).

Question 3

Which color format should I use?

Accepted Answer

Use HEX (#FF5733) for CSS, RGB(255,87,51) for code, CMYK for print. HSL is intuitive for adjusting brightness and saturation.

Question 4

Why do print colors look different from screen?

Accepted Answer

Screens emit RGB light; printers use CMYK ink. CMYK has a smaller color range (gamut), so bright screen colors may appear duller in print.

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