900 × 600
Source:https://www.musebridals.com/products/charming-royal-blue-satin-spaghetti-straps-prom-dresses-with-side-slit-mp449
1350 × 900
Source:https://modsele.com/products/royal-blue-lace-up-back-pleated-satin-long-prom-dress-with-slit
1785 × 1340
Source:https://www.kissprom.com/products/royal-blue-mermaid-strapless-tight-long-prom-dress-with-slit
1024 × 866
Source:https://www.abcprom.com/products/a-line-v-neck-backless-royal-blue-satin-long-prom-dresses-with-high-slit-backless-royal-blue-formal-evening-graduation-dresses
1500 × 1000
Source:https://www.kissprom.com/products/mermaid-one-shoulder-royal-blue-long-prom-dress-with-criss-cross-back
1500 × 1000
Source:https://lwtdress.com/products/simple-backless-high-slit-royal-blue-long-prom-dresses-backless-royal-blue-formal-graduation-evening-dresses
900 × 600
Source:https://www.musebridals.com/products/royal-blue-a-line-off-shoulder-prom-dresses-evening-dresses-with-train-mp725
705 × 528
Source:https://www.selinadress.com/products/chic-a-line-one-shoulder-royal-blue-long-prom-dresses-satin-evening-gowns-mlh055
902 × 600
Source:https://www.simidress.com/products/simple-blue-satin-a-line-long-prom-dresses-with-high-slit-evening-gowns-sp798
683 × 512
Source:https://www.bridelily.com/products/v-neck-2-pieces-royal-blue-satin-long-prom-dresses-with-slit-two-pieces-royal-blue-formal-graduation-evening-dresses-sh0677