People with brown eyes tend to more trusted than those with blue eyes, says some Czechoslovakian research into the subject:
They showed pictures of 40 male and 40 female students, split equally between blue and brown-eyed, to 238 undergraduate students. Brown-eyed men were consistently judged more trustworthy than blue-eyed men. The same trend held for women, but it wasn’t so pronounced. The researchers then used Photoshop to change brown eyes to blue and blue eyes to brown, and showed the altered photographs to a second group of students. Now the artificially blue-eyed men were judged trustworthy.