For example, you want to set 90% alpha opacity to #000000, you need to add
E6
like this#000000E6
rgba(0, 0, 0, 0.7) => #000000B3
rgba(0, 0, 0, 0.9) => #000000E6
RGBA to Hex Converter with Transparency
For example, you want to set 90% alpha opacity to #000000, you need to add
E6
like this#000000E6
rgba(0, 0, 0, 0.7) => #000000B3
rgba(0, 0, 0, 0.9) => #000000E6