.selectorv2 > .sn_ys > span:nth-child(2) {
color: red;
}
<label class="selectorv2" for="{{ section.id }}-{{ forloop.index0 }}">
<div class="sn_ys">
<span class="swatch_title">{{ variant.title }}</span>
<span class="eraser_text">{{ variant.metafields.custom.variantqty }}</span>
<div class="swtch_you_save">{{ variant.metafields.custom.variantoffer }}</div>
</div>
<div class="prie_grp">
<span class="var_price">{{ variant.price | money }}</span>
<span class="var_prce">
<s class="var_com_price">{{ variant.compare_at_price | money }}</s>
</span>
</div>
</label>
