گل ہاۓ رنگ رنگ سے ہے زینت ِ چمن ۔۔۔۔۔۔۔۔۔۔۔۔۔۔
اے ذوق ، اِس جہاں کو ہے زیب '' اختلاف '' سے
Yellow colour is very focusing colour. Therefore, taxis and helmets of workers are made up in this colour. Yellow flowers are focused by insects. Yellow flowers have short time to pollinate perhaps their colour helps them in this regard.