Colours in Irish

In Brief

Irish colour words normally come after the noun: carr dearg means “a red car.” When a colour directly describes a feminine singular noun, its first consonant is usually lenited if possible: bróg dhearg “a red shoe.” In the plural, many colours add -a or -e, as in bróga dearga “red shoes.”

Overview

Colour words in Irish are usually adjectives (words that describe a person, object, or idea). The most noticeable difference from English is word order. English says “a blue jumper,” with the colour first; Irish normally puts the noun first: geansaí gorm, literally “jumper blue.” This noun + adjective pattern also appears with the article: an geansaí gorm, “the blue jumper.”

Colours are an A1 topic, but they provide a useful introduction to central features of Irish grammar. Irish nouns have grammatical gender—they are classed as masculine or feminine—and an adjective attached directly to a noun can change according to the noun’s gender and number. The most important beginner change is séimhiú (lenition, a change to the first consonant usually written by adding h): bán becomes bhán after a feminine singular noun in a phrase such as bean bhán.

Do not let the mutations prevent you from speaking. Start with noun first, colour second. Then learn common expressions as complete pairs: carr dearg, léine ghorm, bróga dubha. The later sections explain why those forms differ and point out several subtleties that you can return to after mastering the basic pattern.

How It Works

1. Put the colour after the noun

The normal pattern is:

noun + colour adjective

Irish pattern	English pattern
carr dearg	a red car
geansaí gorm	a blue jumper
cóta dubh	a black coat
teach bán	a white house

The article belongs before the noun, not before the adjective: an carr dearg “the red car.” Irish has no separate indefinite article corresponding to English “a/an,” so carr dearg can mean “red car” or “a red car,” depending on context.

2. Learn the common basic colours

Irish	English	Note
dearg	red	The general colour red
gorm	blue	Also appears in established descriptions and names
glas	green; grey-green	Often used for vegetation and natural green shades
uaine	green; vivid green	Often used for a clear or artificial green
dubh	black	Also used in descriptions of dark hair
bán	white; fair	Common for white objects and fair hair or complexion
donn	brown	Plural donna
buí	yellow	The plural normally remains buí
liath	grey	Common for grey hair and other grey colouring
rua	red-haired; reddish-brown	Especially common for hair and animals; not the general substitute for dearg

The distinction between glas and uaine does not map perfectly onto one simple English rule. A practical starting point is glas for natural greens, especially vegetation, and uaine for a bright or clearly green object. Actual usage depends on the thing described and on established expressions, so learn examples rather than treating the distinction as absolute.

Similarly, rua is not simply another word for every red object. Use dearg for an ordinary red car, door, or dress. Rua is especially associated with red hair, reddish fur, and certain natural brown-red shades: bean rua “a red-haired woman,” madra rua “a reddish-brown dog.”

3. Feminine singular nouns usually lenite the colour

When a colour adjective directly follows a feminine singular noun, it normally receives lenition if its first consonant allows it.

Basic colour	Lenited form	Example	Meaning
bán	bhán	bean bhán	a fair/white-haired woman
dearg	dhearg	bróg dhearg	a red shoe
gorm	ghorm	léine ghorm	a blue shirt
glas	ghlas	súil ghlas	a green eye
dubh	dhubh	gruaig dhubh	black hair
donn	dhonn	bróg dhonn	a brown shoe

This is an agreement pattern: the adjective changes to match features of the noun it describes. You therefore need to learn the gender of useful nouns along with the noun itself. For example, carr “car” is masculine, while bróg “shoe” is feminine: carr dearg, but bróg dhearg.

Not every initial letter can show lenition. Vowels do not take an added h, and l, n, r are not lenited in modern spelling. That is why bean rua remains bean rua, not an invented form such as bean rhua. There are also sound-based restrictions after certain consonants; for instance, the n at the end of bean can prevent lenition of a following adjective beginning with d, as in bean deas “a nice woman.” Learning frequent noun–adjective combinations is safer than mechanically adding h in every case.

4. Plural adjectives often have a plural ending

Many common colour adjectives add -a or -e after a plural noun. The choice reflects Irish spelling and the adjective’s final consonant.

Singular	Plural	Example	Meaning
dearg	dearga	carranna dearga	red cars
gorm	gorma	geansaithe gorma	blue jumpers
glas	glasa	duilleoga glasa	green leaves
dubh	dubha	cait dhubha	black cats
bán	bána	tithe bána	white houses
donn	donna	súile donna	brown eyes
liath	liatha	scamaill liatha	grey clouds
buí	buí	bláthanna buí	yellow flowers
rua	rua	madraí rua	red-coated dogs

Plural agreement has an additional mutation rule: an adjective can be lenited after a plural noun whose nominative form ends in a slender consonant, as in cait dhubha. A slender consonant is one next to e or i in the relevant spelling environment. This is worth recognising, but beginners can first memorise high-frequency plural phrases without trying to predict every mutation.

5. A colour inside a noun phrase is not always the same as a predicate

Compare these two structures:

• an bhróg dhearg — “the red shoe,” one complete noun phrase
• Tá an bhróg dearg. — “The shoe is red,” a full sentence

In the first, dhearg is attached directly to the feminine noun and is lenited. In the second, dearg is a predicate adjective (an adjective that says what the subject is like after a verb), so it normally appears in its basic form. This distinction explains why copying the form from “a red shoe” into “the shoe is red” can produce an error.

The useful sentence frame is:

Tá + noun phrase + colour.

For example, Tá an carr gorm means “The car is blue,” and Tá na bróga dubh means “The shoes are black.” In this predicate use, the colour is not made plural merely because the subject is plural.

Examples in Context

Irish	English	Note
Tá carr dearg aici.	She has a red car.	Masculine carr; basic adjective
Cheannaigh mé bróg dhearg.	I bought a red shoe.	Feminine singular noun causes lenition
Is maith liom an geansaí gorm.	I like the blue jumper.	Colour follows the noun
Tá an geansaí gorm.	The jumper is blue.	Predicate adjective in its basic form
Tá léine ghorm air.	He is wearing a blue shirt.	Literally, “A blue shirt is on him”
Tá súile donna aici.	She has brown eyes.	Plural adjective donna
Tá gruaig dhubh uirthi.	She has black hair.	gruaig is feminine; dubh → dhubh
Tá an ghruaig dubh.	The hair is black.	Predicate dubh remains basic
Tá cóta bán orm.	I am wearing a white coat.	Literally, “A white coat is on me”
Tá na tithe bána ar an tsráid seo sean.	The white houses on this street are old.	Bána belongs inside the plural noun phrase
Tá na tithe bán.	The houses are white.	Predicate colour remains uninflected
Thit na duilleoga glasa.	The green leaves fell.	Plural agreement in a noun phrase
Tá doras uaine ar an teach.	The house has a green door.	Literally, “A green door is on the house”
Tá bean rua ina cónaí anseo.	A red-haired woman lives here.	rua is unchanged and refers to hair colour
Chonaic muid cait dhubha sa ghairdín.	We saw black cats in the garden.	Plural form with lenition after cait

Common Mistakes

Putting the colour before the noun

• Wrong: dearg carr
• Right: carr dearg
• Why: Unlike English, Irish normally places an ordinary descriptive adjective after its noun.

Forgetting feminine lenition

• Wrong: bróg dearg
• Right: bróg dhearg
• Why: Bróg is a feminine singular noun, so a directly attached adjective is lenited when possible.

Leniting a masculine phrase

• Wrong: carr dhearg
• Right: carr dearg
• Why: Carr is masculine. The beginner nominative singular phrase uses the basic adjective.

Inventing lenition where the spelling does not allow it

• Wrong: bean rhua
• Right: bean rua
• Why: Initial r does not take written lenition. The adjective rua is also the natural choice for red hair, not for every red object.

Using an agreed form as a predicate

• Wrong: Tá an bhróg dhearg when you mean “The shoe is red.”
• Right: Tá an bhróg dearg.
• Why: In an bhróg dhearg, the colour belongs inside the noun phrase, “the red shoe.” After tá as a predicate, the basic form dearg is normally used.

Using rua for any red object

• Wrong: carr rua for an ordinary bright-red car
• Right: carr dearg
• Why: Dearg is the general colour “red.” Rua usually describes red hair, reddish fur, or an established natural red-brown colour.

Usage Notes

Irish colour categories do not always divide the spectrum exactly as modern English does. Glas has traditionally covered natural green and some greyish or pale shades, while uaine is strongly associated with an unambiguous or vivid green. Modern speakers may vary, and familiar combinations often matter more than a rigid definition. Notice which word is used with a particular object and store the phrase as a unit.

The words dubh, bán, and rua frequently describe hair or complexion, but a literal English translation can sound misleading. Bean bhán may refer to a fair-haired or fair-complexioned woman, not a woman who is literally white. Bean rua normally means a red-haired woman. Context determines the natural translation.

For clothing, Irish commonly uses ar “on” with a prepositional pronoun: Tá cóta dubh orm literally means “A black coat is on me,” but natural English says “I’m wearing a black coat.” Learning this pattern lets you practise colours in realistic conversation rather than only naming isolated objects.

Beyond the Basics / Advanced Use

You do not need to master the following details at A1, but they explain forms that you will meet later.

Adjective agreement changes not only with gender and number but also with case (a form showing the noun’s role or relationship in a phrase). Genitive constructions—roughly, phrases involving “of”—can trigger forms and mutations beyond the simple patterns taught here. The article itself also mutates many nouns: an bhróg “the shoe” and an ghruaig “the hair.” Keep the mutation of the noun separate from the mutation of its adjective: an bhróg dhearg contains both.

Irish also combines colours with modifiers and compounds. Gorm dorcha means “dark blue,” while gorm éadrom means “light blue.” In such combinations, usage and agreement can be more involved than simply changing every visible word. Hyphenated colour compounds and fixed terms may follow lexical conventions, so a good dictionary or trusted corpus is preferable when you need a precise specialist shade.

Finally, the difference between an attributive adjective (one inside the noun phrase) and a predicate adjective matters beyond colours:

Attributive phrase	Predicate sentence
an bhean mhór — the big woman	Tá an bhean mór. — The woman is big.
na tithe bána — the white houses	Tá na tithe bán. — The houses are white.
an bhróg dhearg — the red shoe	Tá an bhróg dearg. — The shoe is red.

This contrast is a powerful reason to learn whole structures rather than translating one English word at a time.

Practice Tips

1. Label objects as noun–colour pairs. Look around a room and say cathaoir dhonn, doras bán, or mála dubh. Check each noun’s gender, then correct the adjective if necessary.
2. Practise contrasts in pairs. Say both an bhróg dhearg “the red shoe” and Tá an bhróg dearg “the shoe is red.” This makes the attributive–predicate difference memorable.
3. Build a small singular/plural deck. Pair carr dearg / carranna dearga, teach bán / tithe bána, and súil dhonn / súile donna. Say the forms aloud so mutation and endings become part of the sound, not just the spelling.

Related Concepts

• Prerequisite: Basic Adjectives — introduces adjective position, gender agreement, lenition, and plural forms used by colour words.