UPDATE (4/27/2022)
The use of the rainbow colors for crochet projects is something that I’ve come to love. I can remember the acronym of ROY G BIV (Red, Orange, Yellow, Green, Blue Indigo, Violet) from art class in high school and for some reason this has stuck in my head all these years.
Red Heart used to have a page for helping in selecting various shades of the rainbow colors for your projects and it was something to bookmark for color combination inspiration. The original blog post from Red Heart Yarns no longer works due to Yarnspirations taking over Red Heart. However, the blog Jen’s a Little Loopy does have some great charts for Rainbow colors in various colorways and you can find her info here.