h&m denim midi dress Ladies - Light Blue Denim - Size: 18 Short dress in sturdy cotton denim with rhinestone trims Denim Midi Dresses | H&M
Description
The truth is the colors of the dress in the photograph are a murky brown and a greyish lavender

The question What color is the dress? has more than two answers, they wrote

However, it's really all about how the outfit works together, where you're wearing it & what you feel most comfortable in

They are fitted at the top and flare out towards the hemline, creating a flattering silhouette

On that note, please take this brief (five-minute) survey in the spirit of #citizenscience

If we were in that physical space we would know what the lighting is on that particular dress