toHexArgbString method

@override String toHexArgbString()

Canonical form for color #rrggbb with alpha blending (0.0 == full transparency and 1.0 == fully opaque). If _argb length is 6 it's an rrggbb otherwise it's aarrggbb.

Implementation

@override
String toHexArgbString() => Rgba.fromHsla(this).toHexArgbString();