Nail the exact color light purple in your design by using the code from any one of these systems for color identification.
|RGB||r: 177, g: 156, b: 217|
|HSL||h: 261°, s: 45%, l: 73%|
|HSV||h: 261°, s: 28%, v: 85%|
|CMYK||c: 18%, m: 28%, y: 0%, k: 15%|
If you're identifying color for pretty much anything digital, you're working in an RGB colorspace. If the project you're working on requires percentage representation, light purple is made of 69% red, 61% green, and 85% blue.
If you're identifying color for a print project, you're most likely using a CMYK colorspace—the percentages are 18% cyan, 28% magenta, 0% yellow, 15% black.