HEX to HEXA

Why add two nibbles

Six-digit #RRGGBB assumes fully opaque sRGB. Eight-digit #RRGGBBAA appends an alpha channel so gradients, glassmorphism tokens, and Android/XML color resources can express translucency without switching to rgba().

Convention

Alpha is usually the last byte (00 transparent → FF opaque). If your stack expects ARGB instead, flip components in Color converter before shipping tokens.

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