How to colour my Decimal field based on its value

I want to know "How to color a text field?" , please share if you know.

Text fields do not support colors.

Instead you could use a side-by-side layout to place an icon nearby and change its color based on some conditions.

Additionally, if you can change to a!richTextDisplayField() you can utilize color-coded text values:

a!localVariables(
  local!values: {7.55,8,9.22},
  
  {
    a!forEach(
      items: local!values,
      expression: a!richTextDisplayField(
        value: a!richTextItem(
          text: fv!item,
          color: if(fv!item=8,"#3DDD2A","#0000FF")
        )
      )
    )
  }
)

yeah thanks Stefan..i think I will have to do it to keep the UI look simple. Currently I am doing a validation message but that's not looking good

Thanks Chris..okay so this also looks like another option. I need to try it

Hi Aman, sorry my bad.  I meant richTextDisplayField..something that Chris is suggesting below. 

thanks for looking though

I recommend to stay to Appian OOTB as much as possible. Most approaches to customize things will get you into trouble sooner or later. Also keep in mind that our clients typically run multiple apps and you would have to keep these customizations in sync across all apps and delivery teams.