Breastfeeding is an important condition for the health of the mother and the baby, which is the most difficult for mothers after birth. Since it is an important practice for both the mother and the baby, the evaluation and reduction of the mother's stress factors can help the hospital to regulate the lighting of the breastfeeding room. In addition, setting the light color temperature to a more appropriate kelvin can make a positive contribution to the hospital in terms of costs. For this purpose, when researchers look at the literature, we have not come across a randomized controlled study examining the effect of the light color temperature applied during breastfeeding on the mother's stress, anxiety, peace and breastfeeding motivation. Researchers' purpose is to determine the effect of the light color temperature applied during breastfeeding on the mother's stress, anxiety, peace and breastfeeding motivation.

Inclusion Criteria:

• Mothers who have given birth for the first time,
• being 18 years of age and older,
• volunteering.

Exclusion Criteria:

• Being a mother who has given birth to more than one child,
• having any problem that prevents communication (such as not knowing Turkish, having hearing, speaking and understanding disorders),
• receiving psychiatric treatment (pharmacotherapy or psychotherapy),
• having a disease that prevents vision.

Can be shared when necessary