Colors

Colors in French 'les couleurs' go after the word they describe.

Example:
The white dog  becomes  the dog white:
Le chien blanc.
Most of the simple colors in French, except for Orange and Marron, change their endings to agree with the word (noun) they describe.
Example:
Masculine:
The green pencil
=  Le crayon vert

Feminine:
The green car
=  La voiture verte

Masculine Plural:
The green pencils
= Les crayons verts

Feminine Plural:
The green cars
= Les voitures vertes 

Invariable Colors:
–  Orange and Marron are colors which never change their endings.  They are called invariable colors.
–  Color Combinations  and colors which have clair (light) or foncé (dark) added to them are also invariable and never change:
Example:
la voiture vert foncé  =  the dark green car

Study this table for more information on gender and singular and plural endings.

Then watch, listen and join in with the video clips below.

                                              Colors in French

Clear sentences to illustrate when and how colors agree with the nouns they describe in French:

Study these examples illustrated on the video above:
1.  La fleur(f) est bleue
….  The flower is blue
2.  La fleur(f) est bleu clair                 
….  The flower is light blue
3.  Le camion bleu clair a des bûches(fpl) marron.
….  The light blue truck has some brown logs
4.  Les fleurs(fpl) roses sont jolies  
….  The pink flowers are pretty
5.  Les fleurs(fpl) sont vert foncé
….  The flowers are dark green

To reinforce the position of colors after the noun in French, here is a second video for more listening and oral practice:

Fun songs about colors.