śyāma they all are

Draupadī, Varāha, Arjuna and mother Yaśodā are all śyāma-complexioned, not golden. 

Practically all pictures that are made of them, be they Indian, be they western, are wrong. Here is the scriptural evidence -

MOTHER YAŚODĀ - 

Bhakti Rasāmṛta Sindhu 3.4.13 -

ḍori-jutita-vakra-keśa-paṭalā sindūra-bindūllasat 

sīmānta-dyutir aṅga-bhūṣaṇa-vidhim nāti-prabhūtaṁ śritā |

govindāsya-nisṛṣṭa-sāśru-nayana-dvandvā navendīvara

śyāma-śyāma-rucir vicitra-sicayā goṣṭheśvarī pātu vaḥ ||13||

The queen of the cowherds, Yaśodā, has wavy hair bound by cords, with a dot of sindūra at the parting of her hair. She does not wear many ornaments. Her eyes become filled with tears on seeing Kṛṣṇa. Her complexion is dark like a blue lotus, radiating a dark glow, and she wears colorful clothing. May she protect us!

mātā gopa-yaśo-dātrī yaśodā śyāmala-dyutiḥ

(Rādhā-kṛṣṇa Gaṇoddeśa Dīpikā 1.28)

Because she gives fame to the cowherds, Śrī Kṛṣṇa’s mother is called Yaśodā. Her complexion is blackish blue (śyāmala). 

ARJUNA -

In the Virāṭa Parva (39.20) of the Mahābhārata, Arjuna tells Uttara Kumāra how he got his ten names -

kṛṣṇa ityeva daśamaṁ nāma cakre pitā mama;

kṛṣṇāvadātasya sataḥ priyatvād bālakasya vai

"My father gave me this tenth name Kṛṣṇa because of my complexion and charm."

https://www.sacred-texts.com/hin/mbs/mbs04039.htm

Sanjaya when visiting Upaplavya in Udyoga-parva (58.10) described Kṛṣṇa and Arjuna thus..

śyāmau bṛhantau taruṇau śāla skandhāv ivodgatau

Both Kṛṣṇa and Arjuna are described as tall, dark, and youthful.

https://www.sacred-texts.com/hin/m04/m04044.htm

DRAUPADĪ

Draupadī is described as dark in the Ādi-parva 1.155.42, 44, 50 of the Mahābhārata -

https://www.sacred-texts.com/hin/m01/m01170.htm

https://www.sacred-texts.com/hin/mbs/mbs01155.htm

42 śyāmā padmapalāśākṣī nīlakuñcita mūrdhajā

mānuṣaṃ vigrahaṃ kṛtvā sākṣād amara varṇinī

And there arose, after this from the centre of the sacrificial platform, a daughter also, called Panchali, who, blessed with great good fortune, was exceedingly handsome. Her eyes were black, and large as lotus-petals, her complexion was dark, and her locks were blue and curly. 

44. tāṃ cāpi jātāṃ suśroṇīṃ vāg uvācāśarīriṇī

sarva yoṣid varā kṛṣṇā kṣayaṃ kṣatraṃ ninīṣati

'This dark complexioned girl will be the first of all women, and she will be the cause of the destruction of many kṣatriyas. This slender-waisted one will, in time, accomplish the purpose of the gods, and along with her many a danger will overtake the Kauravas.'

50.  kṛṣṇety evābruvan kṛṣṇāṃ kṛṣṇābhūt sā hi varṇataḥ

tathā tan mithunaṃ jajñe drupadasya mahāmakhe

And they also said, 'Because this daughter is so dark in complexion, she should be called Kṛṣṇā (the dark).'

VARĀHA -

Varāha-deva is also śyāma, not piggy-colored -

Śrīmad Bhāgavata 3.13.33 -

tamāla-nīlaṁ sita-danta-koṭyā kṣmām utkṣipantaṁ gaja-līlayāṅga

"Then the Lord, with a bluish complexion like that of a Tamāla-tree, playing like an elephant, placed the earth on the edge of His curved white tusks."