The colours taken from Liberlands flag – yellow symbolises free market capitalism and Austrian economics.
Black symbolises minarchy or minimal government with separation from religion, education, free markets, marriage, medicine and peoples private lives. 

The motto reinforces the right of citizens to live according to the Non Aggression principle aka NAP without coercion and interference from Government or any one else. Liberlanders afford others the same respect.

The featured Crest, the
shield shape can be viewed as defending against aggression, indeed, the
components on the Crest are the inverse of war and aggression – all
about libertarianism, freedom, peace, prosperity and holistic with the
generic laws of nature and generic laws of morality.
The blue
symbolises the water of the 2850 km Danube river that flows past
Liberland bringing people, trade and investment by international
access-way to no less than 11 countries stretching from western Germany
to Romania and the Black Sea.
White symbolises peace as does the bird for freedom.
In
like manner of a free market based gold or crypto economy the sun
delivers wealth and health to the Danube and territory of Liberland,
it’s environment surrounds and it’s people.
Brown is for terra, the
land. And the tree, which grows in Liberland, symbolises prosperity
which comes from the use of the land.
The fruits of the tree, the
red berries can be viewed similarly as the prosperity that
entrepreneurial and industrious Chinese migrants have produced
repeatably – by way of free market capitalism and their own hard work –
in countless thriving China towns globally over several centuries, the
colour red for them symbolised masculine energy, happiness, good
fortune, joy.

The description above is the view of a private citizen.

In traditional heraldry <click for reference
* The colour gold (the sun) signifies generosity and elevation of the mind.
* Blue signifies truth and loyalty.
* White signifies peace and sincerity