Combining turquoise acrylic beads with royal blue seed beads does indeed create a captivating contrast, reminiscent of ancient jewellery designs. The blend of these colours evokes a sense of history and tradition, while still maintaining a contemporary flair. The turquoise beads could symbolize tranquility and protection, while the deep royal blue adds richness and sophistication. Overall, this combination offers a unique and timeless aesthetic that's sure to appeal to anyone with a love for both modern and ancient styles.