Text color doesn't work in body and headers

[badknight]

my program says #3AAG35 is not a valid color for HTML, please try another color, maybe a simple color like #00fff for example

thats right..

In mathematics and computer science, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a–f) to represent values ten to fifteen

[jacobi22]

my program says #3AAG35 is not a valid color for HTML, please try another color, maybe a simple color like #00fff for example

[Mike2]

Template used: webarte-greenme. In "template.css" I changed the color of anchortags. That worked fine.
Also, I changed color of body and header text to no avail! They remain black.

css: h1 {margin:10px 0 6px 0; font-size: 18px; color:#3AAG35; }
website developer tool says:
- inherited - body            (template.css)
    -  font-family and font-size are struck through
- inherited h1            (template.css)
    - font-size: 18px;
- inherited - span
    - inline style
        - font-family: Arial;

No mention of color! What is overruling color? Does anyone know? Thanks!