About This Tool
Convert RGB color values (Red, Green, Blue) to hexadecimal color codes for use in CSS, HTML, and web design. Enter individual R, G, B values (0-255) and get the corresponding hex code (#RRGGBB). Also supports RGBA to 8-digit hex conversion for colors with transparency.
Frequently Asked Questions
- Why would I convert RGB to hex?
- Hex codes are the standard color format in CSS and HTML. They're more compact than rgb() notation and widely used in design specs, brand guidelines, and style guides.
- What if my RGB value is outside 0-255?
- Valid RGB values range from 0 (no intensity) to 255 (full intensity) per channel. Values outside this range will be clamped. Each channel maps to two hex digits: 0 = 00, 255 = FF.
- How do I add transparency to a hex code?
- Add an alpha value (0-255) as a fourth parameter. The tool will output an 8-digit hex code (#RRGGBBAA) where AA represents opacity: FF = fully opaque, 00 = fully transparent.
- Is #000000 always black?
- Yes. #000000 (R:0, G:0, B:0) is pure black, and #FFFFFF (R:255, G:255, B:255) is pure white. These are the extremes of the RGB color space.