Can you imagine if colour didn't exist? God thought of everything when He created the universe, and creation wouldn't be complete without colour.
God knows pictures and parables help us understand complex truths, and He doesn't want us to miss who He truly is.
Have you ever wondered, "What is colour for anyway?" Simply for our enjoyment? Maybe to help our eyes practically see things distinctively and with more depth? I believe Romans 1:20 when it says creation tells us that God is real and what He is like, and it's meant to point us back to Him. In the Bible we see God time and time again using simple pictures, even the use of colours, to explain deep spiritual truths.
The rainbow for example is a promise of mercy (Genesis 9:12-17). When the prophet Ezekiel saw a vision of God on the throne with the rainbow radiating around Him, though God gave him hard messages to tell His people, Ezekiel would know and remember God was still for and a living embodiment of mercy (Ezekiel 1:26-29). When Israel was crafting the tabernacle in the desert, everything to the drapes and priests robes were dyed and embroidered with an array of colours to symbolize messages of God's plan of salvation and a picture of the past and coming (promise) Garden of Eden (Exodus 28). Jesus described the robes of Solomon as drab compared to the flowers God clothed the fields with, to teach us not to worry about our clothes, how we look, or our simple needs, because His provision is greater (Matthew 6:29-30).
God knows pictures and parables help us understand complex truths, and He doesn't want us to miss who He truly is. I love that even colour has a God given purpose!