This bar chart visualizes unemployment rates across a selection of U.S. states, using a sequential blue color scale where darker bars indicate higher rates. The chart includes rounded bars with drop shadows, a dynamic tooltip showing state and rate on hover, and a vertical gradient legend. Built with D3.js, the visualization uses `scaleBand`, `scaleLinear`, `scaleSequential`, `interpolateBlues`, `axisBottom`, and `axisLeft` to structure the axes and color mapping. Gridlines and labeled axes enhance readability, while the embedded data contains hardcoded state unemployment percentages.