﴿ صِبْغَةَ ٱللَّهِ ۖ وَمَنْ أَحْسَنُ مِنَ ٱللَّهِ صِبْغَةًۭ ۖ وَنَحْنُ لَهُۥ عَٰبِدُونَ ﴾

“[Say: "Our life takes its] hue from God! And who could give a better hue [to life] than God, if we but truly worship Him?"”

((We take our) colour from Allah) i.e. follow the Religion of Allah, (and who is better than Allah at colouring) better than the Religion of Allah. (And We are His worshippers) say: we are monotheists and acknowledge that we worship Him and declare that there is only one true God.