Nail the exact color light blue in your design by using the code from any one of these systems for color identification.
|RGB||r: 173, g: 216, b: 230|
|HSL||h: 195°, s: 53%, l: 79%|
|HSV||h: 195°, s: 25%, v: 90%|
|CMYK||c: 25%, m: 6%, y: 0%, k: 10%|
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 blue is made of 68% red, 85% green, and 90% blue.
If you're identifying color for a print project, you're most likely using a CMYK colorspace—the percentages are 25% cyan, 6% magenta, 0% yellow, 10% black.