This snippet generates all Semantic UI colors for Text Colors. Use with class="[color] text", e.g. class="red text", class="violet text". Doesn't collide with other color classes.

semantic-ui-colors.less

@primaryColor   : @pink;
@secondaryColor : @grey;
@red            : #B03060;
@orange         : #FE9A76;
@yellow         : #FFD700;
@olive          : #32CD32;
@green          : #016936;
@teal           : #008080;
@blue           : #0E6EB8;
@violet         : #EE82EE;
@purple         : #B413EC;
@pink           : #FF1493;
@brown          : #A52A2A;
@grey           : #A0A0A0;
@black          : #000000;
@colors         : red orange yellow olive green teal blue violet purple pink brown grey black;

.generate-text-colors(@i: 1) when (@i < length(@colors)) {

    @item: extract(@colors, @i);
    &[class*="@{item} text"] { 
        color: @@item; 
    }
    .generate-text-colors(@i + 1);
}

.generate-text-colors();