| 蓝 | lán | blue; indigo plant; surname Lan |
| 蓝色 | lán sè | blue (color) |
| 蓝天 | lán tiān | blue sky |
| 蓝藻 | lán zǎo | cyanobacteria (blue-green algae) |
| 蓝图 | lán tú | blueprint |
| 蓝本 | lán běn | blueprint; source material on which later works (books, movies etc) are based |
| 蓝靛 | lán diàn | indigo |
| 蓝侬 | Lán nóng | Lennon |
| 蓝光 | Lán guāng | Blu-ray (disc format) |
| 蓝光光盘 | lán guāng guāng pán | Blu-ray disk, Sony high definition DVD disk |
| 蓝宝石 | lán bǎo shí | sapphire |
| 蓝屏死机 | lán píng sǐ jī | blue screen of death |
| 蓝山 | Lán shān | Lanshan county in Yongzhou 永州, Hunan |
| 蓝山县 | Lán shān xiàn | Lanshan county in Yongzhou 永州, Hunan |
| 蓝巨星 | lán jù xīng | blue giant star |
| 蓝晶 | lán jīng | blue topaz; topaz (aluminum fluorosilicate) |
| 蓝月亮 | Lán yuè liang | Blue Moon, a hypothetical planet |
| 蓝毗尼 | Lán pí ní | Lumbini, Nepal, birthplace of Siddhartha Gautama 释迦牟尼 founder of Buddhism (also written 岚毘尼, 腊伐尼, 林微尼) |
| 蓝牙 | Lán yá | Bluetooth |
| 蓝田 | Lán tián | Lantian county in Xi'an 西安, Shaanxi |
| 蓝田种玉 | lán tián zhòng yù | a marriage made in heaven (idiom) |
| 蓝田县 | Lán tián xiàn | Lantian county in Xi'an 西安, Shaanxi |
| 蓝皮书 | lán pí shū | an official report (e.g. governmental) |
| 蓝移 | lán yí | blue shift (in the Doppler effect) |
| 蓝筹股 | lán chóu gǔ | blue chip stock |
| 蓝精灵 | lán jīng líng | Smurf; the Smurfs |
| 蓝细菌 | lán xì jūn | Cyanobacteria (blue-green algae) |
| 蓝绿菌 | lán lǜ jūn | Cyanobacteria (blue-green algae) |
| 蓝绿藻 | lán lǜ zǎo | Cyanobacteria (blue-green algae) |
| 蓝耳病 | lán ěr bìng | porcine reproductive and respiratory syndrome (PRRS); blue-ear swine fever |
| 蓝肤木 | lán fū mù | sumac (Rhus coriaria), east Mediterranean deciduous shrub with fruit used as spice; also called tanner's sumach or vinegar tree |
| 蓝舌病 | lán shé bìng | blue-tongue (viral disease of livestock) |
| 蓝色剂 | lán sè jì | Agent Blue |
| 蓝色小精灵 | Lán sè xiǎo jīng líng | the Smurfs; Smurf |
| 蓝草莓 | lán cǎo méi | blueberry (Vaccinium angustifolium) |
| 蓝莓 | lán méi | blueberry |
| 蓝菌 | lán jūn | Cyanobacteria (blue-green algae) |
| 蓝菌门 | lán jūn mén | Cyanobacteria (phylum of blue-green algae) |
| 蓝藻门 | lán zǎo mén | Cyanobacteria (phylum of blue-green algae) |
| 蓝领 | lán lǐng | blue collar; common laborer |
| 蓝颜知己 | lán yán zhī jǐ | close male friend; confidant |
| 蓝饰带花 | lán shì dài huā | blue lace flower (Trachymene caerulea) |
| 蓝鲸 | lán jīng | blue whale |
