This is a simple plugin for jQuery to allow conditional formatting. It separates the workload into smaller chunks and runs async to avoid keeping the browser busy for too long. The async properties along with other properties can be changed via the options parameter

$('table#mainTable td').condiFormat({'midColor': '#FFFFFF'});

• highColor
  Color of the highest value. Default: #4CAF50
• midColor
  Color of the middle value. Default: #FFEB3B
• lowColor
  Color of the lowest value. Default: #F44336
• midPoint
  Value representing where the middle value will be at (percentage). Default: 0.5
• opacity
  Opacity of the background-color that will be set. Default: 1
• invertColorAt
  Color code sums (red + green + blue) under this value will have their text color convered to white. Default: 400
• readBatchSize
  Items to read in one batch before allowing browser to take control for a bit. Default: 2000
• colorBatchSize
  Items colored in one batch before allowing browser to take control for a bit. Default: 200
• transitionSpeed
  Conditional formatting color transition speed in ms (0 = disabled). Default: 0
• callback
  Allows passing a function that will be called once the coloring is finished. No default value