In This Qur’an Seven different color shades have been used and each color represents a Tajweed Rule. The color coding system has been introduced to highlight the Rules of Tajweed found in the Qura’nic text. Having a color block on the Tajweed Rules allows the reciter to emphasize the aCCent, phonetics, rhythm and temper of the Qur’anic recitation. The Holy Book of Quran. Reference Number – 123-CC. Available with Poplin Cover and Color Coded with English Tajweed Rules. Paperback. Readability – 15 lines.