A Heat Map Chart colors cells in a grid to show the relative importance of each data point. With a fine-grained ordinal color scale, even subtle differences between adjacent values become visually distinct.
This sample displays a Texas Hold’em poker spread sheet where every cell represents a two-card starting hand. Rows and columns run from 2 to A, and each combination is labeled with an “s” (suited) or “u” (unsuited) suffix. Ten color-scale ranges grade win probability from light blue (under 35%) to deep magenta (above 80%), so strong and weak hands stand out at a glance. A vertical legend maps each color to its probability range, and hovering any cell shows the exact win statistic in a tooltip.
Follow the step-by-step Heat Map Tutorial to learn how such charts are built. See the Heat Map documentation for all configuration options.