Correct

色彩 vs 颜色

/ sècǎi vs yánsè /
Strokes

Formula

1
民族色彩 (national flavor)
2
感情色彩 (emotional flavor)

Definition

色彩 and 颜色 both are Nouns, which means [colour; color].

Example

色彩 and 颜色 are different both in meaning and usage.
1
Jié
节日
de
wǎn
夜晚
  
,
tiānkōng
天空
de
yànhuǒ
焰火
shēnzhuó
身着
chéngzhuāng
盛装
de
rénmen
人们
  
,
cǎibīnfēn
色彩缤纷
  
,
jiāoxiānghuīyìng
交相辉映
  

On the festival night, the beautiful fireworks and people's colorful clothes enhanced each other's beauty.

2
Zhèxiē
这些
chóuduàn
绸缎
de
cǎi
色彩
shí
fēn
xuàn
绚丽
  

The colorful silk cloth is very gorgeous.

3
Zhè
tào
fáng
房子
de
zhuāngshì
装饰
  
,
cǎi
色彩
yǒuxiē
有些
dāndiào
单调
  

The decoration of the house is a bit dull.

颜色 usually means "a certain colour", such as red, white, blue, etc.
4
yào
mǎi
shuāng
bái
yán
颜色
de
xié
皮鞋
  

I'd like to take the white leather shoes.

5
Zhèzhǒng
这种
yán
颜色
gòu
不够
xiānyàn
鲜艳
  

The color is not bright enough.

6
Zhè
zhāng
huà
de
yán
颜色
yǒudiǎnr  
有点儿
huáng
发黄
  

The painting gradually becomes yellowish.

色彩 and 颜色 both words can be used metaphorically.
色彩 means "the tendency of one's thought or the unique appeal of something", 颜色 means the condition of one's health as shown by one's face, or a stern countenance, attitude, facial expression (rather literary).
民族色彩 (national flavor) 感情色彩 (emotional flavor)
7
Zhè
这部
diànyǐng
电影
yǒu
具有
nónghòu
浓厚
de
làngmàn
浪漫
zhǔ
主义
cǎi
色彩
  

The film is very romantic.

8
Zhèxiē
这些
gōngpǐn
工艺品
yǒu
具有
xiānmíng
鲜明
de
fāng
地方
cǎi
色彩
  

The art crafts have distinct local flavors.

9
kàn
de
yán
颜色
duì
不对
  
,
shìshì
是不是
shēngbìng
生病
le
  
?

You don't look well, I wonder whether you are ill or not.

10
jiāhuo
家伙
mánhèng
蛮横
无礼
  
,
yīnggāi
应该
gěi
diǎnr  
点儿
yán
颜色
kànkan
看看
  

The fellow is rude and we should teach him a lesson.