Contact Us
Journal Statistics & Approval Details
Recent Published Paper
Our Author's Feedback
 •  SJIF Impact Factor: 8.067       •  ISRA Impact Factor 7.894       •  Hard Copy of Certificates to All Authors       •  DOI by Crossref for all Published Papers       •  Soft Copy of Certificates- Within 04 Hours       •  Authors helpline No: +91-8813907089(Whatsapp)       •  No Publication Fee for Paper Submission       •  Hard Copy of Certificates to all Authors       •  UGC Approved Journal: IJRASET- Click here to Check       •  Conference on 18th and 19th Dec at Sridevi Womens Engineering College     
ISSN: 2321-9653
Estd : 2013

Ijraset Journal For Research in Applied Science and Engineering Technology

The Skin’s Illusion

Authors: Tanvi Davu

DOI Link: https://doi.org/10.22214/ijraset.2025.73225

Certificate: View Certificate

Abstract

This manuscript explores the common question of why veins appear blue, green, or purple beneath the skin despite blood being red. Integrating concepts from biology, chemistry, and physics, it breaks down how light absorption and reflection create this visual illusion. The manuscript is designed to be accessible for young learners while keeping scientific accuracy.

Introduction

Blood is red due to a protein called hemoglobin, which carries oxygen. Oxygen-rich blood appears bright red, while oxygen-poor blood becomes darker red. However, veins appear blue, green, or purple due to the way light interacts with the skin—blue and green light reflects more easily than red light, which is absorbed deeper. This creates a color illusion. Other factors affecting vein color include skin tone, vein depth, and vein size. Light skin reflects more light, making veins more visible, while deeper or larger veins and darker skin tones may alter the appearance.

 

 

Conclusion

So while your veins may look colorful from the outside, the truth is, your blood is always red inside your body. The colors you see are an illusion caused by the way light travels through and bounces off your skin. It’s a perfect example of how science is happening all the time, even in something as simple as looking at your hands. Nature created a clever trick, and now, you know the science behind it!

References

[1] Hemoglobin – A protein in red blood cells that carries oxygen. [2] Red Light Therapy – A treatment that uses red light to help heal skin. [3] Absorb – When something takes in light or energy. [4] Reflect – When light bounces off a surface. [5] Illusion – Something that tricks the eyes into seeing something that’s not exactly true.

IJRASET73225

Download Paper

Paper Id : IJRASET73225

Publish Date : 2025-07-17

ISSN : 2321-9653

Publisher Name : IJRASET

DOI Link : Click Here

Whatsapp Submit Paper Online