When comparing latex balloon colors it is very important that the balloons are inflated correctly for an accurate display of color. However, even when fully inflated the color may still look different depending on the color and lighting in the room.
The image below compares Qualatex's Robin's Egg Blue, Tropical Teal, and Caribbean Blue latex balloons. Notice the difference in tone and shades of the colors.
Always remember when comparing balloons colors, that colors rely on the quality of the camera, the image and the amount of light.