RGBA ↔ HEX Converter
Type `rgba(255, 122, 0, 0.5)` or `#ff7a0080` and get the other. Alpha is first-class: below 1 you get 8-digit hex instead of silently dropping it, which is the usual bug on converters that only know `#rrggbb`.
Private by design. Colour math runs in this tab — nothing is sent to a server.
FreeNo sign-upRuns in your browserDeveloperApplication
How to convert RGBA to HEX
- Enter channels or paste a string. R/G/B 0–255, A 0–1, or a hex / rgba() string in the two fields.
- Read both hexes. 6-digit is the opaque colour. 8-digit keeps alpha.
- Copy the one you need. hex6, hex8, or the rgba() form.
Frequently Asked Questions
- What is 8-digit hex?
- #rrggbbaa. The last two digits are alpha, 00 transparent to ff opaque. CSS has accepted this for years.
- Why did #ff000080 become 0.502, not 0.5?
- 128/255 is 0.50196…. The converter does not pretend a byte is a round tenth.
- Is this the same as the color picker?
- The color picker is an eyedropper plus HSL harmonies. This page is the dedicated rgba() ↔ hex landing, including alpha.
Use Cases
- Turn a Figma rgba() into an 8-digit hex for CSS
- See what alpha 0.4 is as a byte
- Paste a hex and get rgb()/rgba() back
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