У моей коллеги белая блузка и тёмная сумочка.

Russian often expresses possession with the pattern у + genitive + noun, literally something like at my colleague there is...

So:

• У моей коллеги... = My colleague has...

This is one of the most common ways to say have in Russian.

A fuller version would be:

• У моей коллеги есть белая блузка и тёмная сумочка.

But in many simple descriptive sentences, especially when the existence is obvious, есть is often omitted:

• У моей коллеги белая блузка и тёмная сумочка.

That sounds natural and means My colleague has a white blouse and a dark handbag.

Because the preposition у requires the genitive case when it is used to show possession.

Base forms:

• моя коллега = my colleague
• after у → у моей коллеги

Here is what changed:

• моя → моей
• коллега → коллеги

So the structure is:

• у
  • genitive
• у моей коллеги

This is a very important Russian pattern, and you will see it constantly:

• У меня = I have
• У него = he has
• У сестры = the sister has

In the present tense, Russian often leaves out есть or even the equivalent of is/are when the meaning is clear.

So this sentence has no explicit verb, but it is still complete:

• У моей коллеги белая блузка и тёмная сумочка.

Russian commonly does this in present-tense descriptions.

Compare:

• Это белая блузка. = This is a white blouse.
• У неё белая блузка. = She has a white blouse.

You can include есть in some possession sentences:

• У неё есть белая блузка.

But without есть, the sentence often sounds more like a simple description of what she is wearing or what she has with her.

Because they are adjectives agreeing with feminine singular nouns.

The nouns are:

• блузка — feminine singular
• сумочка — feminine singular

So the adjectives must also be feminine singular:

• белая блузка
• тёмная сумочка

Russian adjectives change to match the noun in:

• gender
• number
• case

A quick comparison:

• белый стол — masculine
• белая блузка — feminine
• белое платье — neuter
• белые вещи — plural

So -ая here marks feminine singular nominative.

They are in the nominative case.

Even though the sentence starts with у моей коллеги in the genitive, the things possessed — белая блузка and тёмная сумочка — stay in the nominative.

That is normal in Russian possession sentences:

• У меня книга.
• У него машина.
• У нашей учительницы новая ручка.

So the pattern is:

• possessor after у → genitive
• possessed thing → nominative

In this sentence:

• у моей коллеги — genitive
• белая блузка и тёмная сумочка — nominative

Сумочка is a diminutive form of сумка.

• сумка = bag, handbag
• сумочка = little bag, handbag, purse

Diminutives in Russian can express:

• small size
• affection
• softness
• a more delicate or feminine tone

So сумочка may suggest a small handbag or simply sound a bit more natural in this context than plain сумка.

Both are possible, but they are not exactly identical in tone.

No. Коллега can refer to either a male or female colleague.

It is a common-gender noun. That means the noun itself has one form, but adjectives and pronouns around it show whether the person is male or female.

In your sentence:

• моей коллеги

This shows the colleague is female, because моей is feminine.

If the colleague were male, you would normally say:

• у моего коллеги

So:

• моя коллега / у моей коллеги = my female colleague
• мой коллега / у моего коллеги = my male colleague

Yes, Russian word order is flexible.

The sentence begins with у моей коллеги, which sets up the possessor first:

• У моей коллеги белая блузка и тёмная сумочка.

That is a very natural order.

You may also see other word orders depending on emphasis. For example:

• Белая блузка и тёмная сумочка у моей коллеги.

This is less neutral and sounds more marked, as if emphasizing who has them.

So the original word order is the most straightforward and neutral for everyday Russian.

Russian has no articles.

So nouns like блузка and сумочка can mean:

• a blouse / a handbag
• the blouse / the handbag

The exact meaning depends on context.

In this sentence, English naturally uses a:

• My colleague has a white blouse and a dark handbag.

But Russian does not need separate words for a or the.

They are the same word, but тёмная is the more accurate spelling because it includes ё.

• тёмная = dark

In everyday Russian writing, ё is often replaced by е, so you may also see:

• темная

But the pronunciation is still usually understood as тёмная, not темная.

For learners, it is helpful to remember the correct stressed form:

• тЁмная

The ё always carries stress.

It can suggest either, depending on context.

Literally, the structure means possession:

• My colleague has a white blouse and a dark handbag.

But in real usage, this can also sound like a description of her appearance or what she has with her at the moment.

If you want to focus more clearly on general possession, adding есть can help:

• У моей коллеги есть белая блузка и тёмная сумочка.

If the context is visual description, the shorter version without есть is especially natural.

So the sentence can work both as:

• a possession statement
• a descriptive observation

Context tells you which one is intended more strongly.