यह रंग अच्छा है।

A natural pronunciation is:

yah rang achchhā hai

A rough English-friendly guide:

• यह = yah (often sounds like yeh in speech)
• रंग = rang (the ंग makes a nasal ng sound, like in song)
• अच्छा = achchhā (with a stronger chchh sound than English cha)
• है = hai (rhymes roughly with eye, though shorter and lighter)

So the whole sentence sounds roughly like:

yah rang achchhā hai

Here is the breakdown:

• यह = this
• रंग = color
• अच्छा = good / nice
• है = is

So the structure is literally:

this color good is

That is normal Hindi word order.

Hindi often puts the verb at the end of the sentence.

English:

• This color is good.

Hindi:

• यह रंग अच्छा है।
• literally: This color good is.

This is one of the most important word-order patterns in Hindi:

• subject/topic first
• description or complement next
• verb last

So है usually comes at the end in simple sentences like this.

Because रंग is a masculine singular noun.

In Hindi, many adjectives change form to match the noun’s gender and number. अच्छा is one of those adjectives.

Forms:

• अच्छा = masculine singular
• अच्छी = feminine singular
• अच्छे = masculine plural (and also used in some other contexts)

Since रंग is masculine singular, the correct form is:

यह रंग अच्छा है।

Compare:

• यह किताब अच्छी है। = This book is good.
  (किताब is feminine, so अच्छी)

Yes, रंग is normally treated as a masculine noun in standard Hindi.

So you would say:

• यह रंग अच्छा है।
• यह रंग नया है।
• यह रंग गहरा है।

The adjectives here take masculine singular agreement because they describe रंग.

Hindi does not usually use articles like English a, an, and the.

So:

• रंग can mean color, a color, or the color, depending on context.

In this sentence, यह already points to a specific thing:

• यह रंग = this color

Because of that, Hindi does not need an extra word like the.

This is a very common learner question.

In formal grammar:

• यह = this / he / she (near)
• ये = these / they (near)

So formally:

• यह रंग अच्छा है। = This color is good.
• ये रंग अच्छे हैं। = These colors are good.

But in everyday spoken Hindi, many speakers often pronounce यह as ये.

So you may hear:

• ये रंग अच्छा है

even when the meaning is singular this color is good, especially in casual speech.

For learning and writing, it is best to know the standard form:

• singular: यह
• plural: ये

है is the present tense form of the verb to be for a singular subject in this kind of sentence.

It corresponds to is in English.

So:

• यह रंग अच्छा है। = This color is good.

Compare:

• यह रंग अच्छा था। = This color was good.
• ये रंग अच्छे हैं। = These colors are good.

So है tells you the sentence is present tense and singular.

Yes. अच्छा is very common and flexible. Depending on context, it can mean:

• good
• nice
• fine
• okay
• sometimes even well

In this sentence, अच्छा most naturally means:

• good
• nice

So यह रंग अच्छा है। could also be understood as:

• This color is nice.

Yes, but the meaning changes slightly.

• अच्छा = good, nice
• सुंदर = beautiful, pretty

So:

• यह रंग अच्छा है। = This color is good / nice.
• यह रंग सुंदर है। = This color is beautiful.

Both are correct, but अच्छा is more general, while सुंदर is more specifically about beauty.

You would say:

ये रंग अच्छे हैं।

Breakdown:

• ये = these
• रंग = colors (many Hindi nouns do not visibly change much in the direct plural)
• अच्छे = good (masculine plural)
• हैं = are

So notice two important changes from the singular:

• यह → ये
• अच्छा है → अच्छे हैं

Sometimes, yes, depending on context.

The word रंग can mean:

• color
• dye
• paint
• sometimes hue/shade

So in the right context, यह रंग अच्छा है। could refer to:

• the color itself
• a paint shade
• a dye or coloring

But without context, the most basic meaning is:

• This color is good.

Usually, yes.

यह often refers to something near the speaker, like this in English.

Compare:

• यह रंग अच्छा है। = This color is good.
• वह रंग अच्छा है। = That color is good.

So the basic contrast is:

• यह = this
• वह = that

No.

एक means one or a/an in some contexts, but it is not needed here.

You would not normally say:

• यह एक रंग अच्छा है ✘

That sounds unnatural for this meaning.

The normal sentence is simply:

• यह रंग अच्छा है।

This is a simple copular sentence: a sentence where something is identified or described using to be.

Structure:

• यह रंग = subject/topic
• अच्छा = predicate adjective
• है = copula (is)

So the sentence is describing the noun रंग by saying it has the quality अच्छा.

This pattern is extremely common in Hindi:

• यह घर बड़ा है। = This house is big.
• यह किताब अच्छी है। = This book is good.
• यह बच्चा छोटा है। = This child is small.