English Idioms About “Law”
Idiom: The letter of the law
Meaning: This idiom is used when one is obeying the literal interpretation of the law, but not the intent or the spirit of those who wrote the law.
Example: Judges mustn’t follow the letter of the law, but its spirit.

English Idioms About “Colors”
Idiom: Until one is blue in the face
Meaning: (Talk/say something/shout until one is blue in the face) pointless efforts while trying to convince someone or change his mind.
Example: His parents tell him to do his homework until they are blue in the face. In fact, he never does his homework.

English Idioms About “Law”
Idiom: Justice is blind
Meaning: This expression means that justice is impartial and objective. There is an allusion here to the Greek statue for justice, wearing a blindfold so as not to treat friends differently from strangers, or rich people better than the poor ones.
Example: No matter who you are, you must respect the law. Justice is blind!