Using the less-rails gem. Using the following code to mix two colours: @base: #ffdc52;

Question

Editorial Team

Asked: May 31, 20262026-05-31T19:17:42+00:00 2026-05-31T19:17:42+00:00

Using the less-rails gem.

Using the following code to mix two colours:

@base: #ffdc52;
@add: #195742;
.colour{
    color: mix(@base, @add);
}

getting the following error:

Less::ParseError: error evaluating function `mix`: Cannot read property 'value' of undefined

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Editorial Team · Answer 1 · 2026-05-31T19:17:44+00:00

Editorial Team

mix needs three parameters:

mix: function (color1, color2, weight) {
    var p = weight.value / 100.0;
    ...
},

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