The Biblia de Estudio Arcoiris (Rainbow Study Bible) represents a significant innovation in biblical hermeneutics and personal devotion by integrating a visual color-coding system into the sacred text. Published primarily in the Reina Valera 1960 (RVR1960) translation, this study Bible is designed to help readers identify key theological themes at a glance, making the complexities of scripture more accessible to both new believers and seasoned scholars.

Beyond its physical formatting, the choice of the "rainbow" as its central motif is deeply rooted in biblical symbolism. In the book of Genesis 9:12-17 , the rainbow is established as the sign of the "Covenant of the Bow," a divine promise from God to Noah and all living creatures that He would never again destroy the earth by a flood. In this context, the Rainbow Study Bible serves as a modern reminder of God’s faithfulness, mercy, and eternal alliance with creation. It functions not just as a tool for information, but as a visual representation of the hope and peace promised in the scriptures.