Cornflower blue is a stunning, vibrant hue that's frequently used in fashion and interiors. However, if you're looking for alternative names for this colour, there are a few synonyms to choose from. For instance, powder blue is a similar shade that might be a little lighter than cornflower blue. If you're looking for a richer, deeper option, sapphire blue, or royal blue could be great choices. Additionally, some might consider baby blue, periwinkle, and sky blue to be synonyms for cornflower blue. Regardless, any of these hues will add an airy, tranquil touch to any outfit or interior design project.