RGBA input Processed locally
HEX result Recents none yet
#394dfe80 8-digit hex · 50% alpha
About this tool
RGBA extends RGB with an alpha channel for transparency (0–1). Modern CSS accepts 8-digit hex, where the last two digits encode that alpha value.
Use it to flatten design-tool transparency into a single copy-pasteable token.
An alpha of 0.5 becomes 80 in hex — 50% of 255, rounded.
Frequently asked questions
Do browsers support 8-digit hex?
Yes — every modern browser supports #rrggbbaa. Only legacy browsers like IE11 do not.
How is alpha converted?
The 0–1 alpha is multiplied by 255 and rounded, then written as two hex digits: 0.5 → 80, 0.2 → 33.
Can I convert back?
Yes — use the HEX to RGB converter, which also reads 8-digit values.