HEX and RGB colors: what the numbers actually represent
HEX and RGB are two ways to write the same kind of channel values in the common sRGB web workflow.
A six-digit HEX color has three two-digit…
A six-digit HEX color has three two-digit channel values. Each pair is a base-16 number from 00 to ff, which maps to a decimal value from 0 to 255.
The notation does not describe every property…
The notation does not describe every property of how a monitor displays color. Color profiles, wide-gamut spaces, contrast, and accessibility still matter.
Use a contrast checker and a design-system…
Use a contrast checker and a design-system review when choosing interface colors. A conversion tool verifies notation; it does not decide whether a palette is accessible.
Use the related tool carefully
This guide is paired with a browser-only utility. The tool is a practical aid for small examples and inspection; it is not a substitute for application testing, a formal data pipeline, or professional review where the decision has higher consequences.
Open the related HEX and RGB Color Converter