السما زرقا.

A common Levantine pronunciation is is-sama zarʔa or es-sama zarʔa.

A few helpful notes:

• السما is often pronounced is-sama / es-sama, not al-sama
• زرقا is often pronounced zarʔa in many urban Levantine accents, because ق often becomes a glottal stop ʔ
• Some speakers keep a real q sound, so you may also hear something closer to zarqa

So depending on the speaker, you may hear slightly different pronunciations, but they all mean the same thing.

Because Arabic often leaves out the verb to be in the present tense.

So السما زرقا literally looks like the-sky blue, but it naturally means The sky is blue.

This is completely normal in both spoken Levantine and Standard Arabic for present-tense sentences like:

• الباب مفتوح = The door is open
• البيت كبير = The house is big

If you want past tense, then a form of كان is used:

• كانت السما زرقا = The sky was blue

Because س is a sun letter.

When الـ comes before a sun letter, the l sound disappears and the next consonant is doubled in pronunciation. So:

• السما is pronounced is-sama / es-sama
• not al-sama

This happens with many words beginning with sun letters, such as:

• الشمس → ish-shams / esh-shams
• السماء or السما → is-sama / es-sama

السما is the colloquial Levantine form, while السماء is the Standard Arabic form.

So:

• السماء = more formal / MSA
• السما = everyday Levantine speech and dialect writing

In spoken Levantine, the final hamza in words like سماء is commonly dropped, so the word becomes سما.

Because السما is grammatically feminine, and adjectives in Arabic must agree with the noun they describe or predicate.

So:

• زرقا = feminine blue
• the masculine form would be أزرق

That means Arabic is matching the gender:

• السما زرقا = The sky is blue
• البحر أزرق = The sea is blue

Even though sky is not feminine in English, it is treated as feminine in Arabic.

Because here زرقا is the predicate of the sentence, not part of a noun phrase.

Compare these:

• السما زرقا = The sky is blue
• السما الزرقا = the blue sky

So in the sentence you were given, زرقا is not the blue; it is simply saying something about the sky.

This is a very important distinction:

• noun + adjective with both definite = usually a noun phrase: the blue sky
• definite noun + indefinite adjective = often a full sentence: the sky is blue

Because زرقا is the common Levantine dialect form, while زرقاء is the Standard Arabic form.

In Standard Arabic:

• أزرق = masculine blue
• زرقاء = feminine blue

In Levantine, this is commonly simplified in speech and informal writing to:

• أزرق
• زرقا

You will see the same pattern with other colors too:

• حمرا = red (feminine)
• صفرا = yellow (feminine)
• خضرا = green (feminine)

It is Levantine dialect.

A Standard Arabic version would normally be:

• السماء زرقاء

The Levantine version is:

• السما زرقا

The meaning is the same, but the dialect version sounds natural in everyday speech in the Levant.

It is a nominal sentence: a sentence built without a present-tense verb.

It has two parts:

• السما = the topic / subject
• زرقا = the predicate

So the structure is basically:

• [noun] + [description]

This pattern is extremely common in Arabic, especially for simple present-tense statements like:

• الأكل طيب = The food is good
• الجو حلو = The weather is nice
• البنت طويلة = The girl is tall

So السما زرقا is a very normal Arabic sentence pattern.