SVG transparent

The logo is an inline svg file – is your svg inside the color-section an inline svg too?
– Why asking this: if you got two inline svg files with the same classes inside ( and that often happens if you use illustrator – because if you do not set the grafic styles – illustrator uses in former times st as class – now it is : cls ).
now your logo is often the first svg on your DOM – if now the next svg has a different color setting for that standard class – it will determine the color for all those classes for the whole page – (cascading style sheet).

eg: if the class inside the logo there is : .st1{fill:#EB5F3D;}
and another st1 is on that page – this will determine the fill color.

so – be more specific in your selectors:
e.g.:

#top.page-id-123 .avia-svg-logo .st1 {
  fill: #FFFFFF;
}