Bright

brilliant

(having a clear, quick intellect — see also intelligent)

glänzend

(emitting much light; visually dazzling — see also luminous, radiant)

heiter

(in good spirits — see also happy, optimistic)

hell

(emitting much light; visually dazzling — see also luminous, radiant)

intelligent

(having a clear, quick intellect — see also intelligent)

lebhaft

(of a colour: not muted or pale — see also bold, vivid)

strahlend

(emitting much light; visually dazzling — see also luminous, radiant)