#3F408D

#3F408D

Color Values

HEX

#3F408D

RGB

63, 64, 141

HSL

239.2, 38.2%, 40.0%

HSV

239.2, 55.3%, 55.3%

CMYK

55.3%, 54.6%, 0.0%, 44.7%

OKLCH

0.4141 0.1247 278.9

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F408D

#8D8C3F

Analogous

#3F678D

#653F8D

#3F408D

Triadic

#3F408D

#8D3F40

#408D3F

Split Complementary

#3F408D

#8D653F

#678D3F

Tetradic

#3F408D

#8D3F67

#8D8C3F

#3F8D65

Color Blindness Simulation

Original

#3F408D

Protanopia

#3F3F7A

Deuteranopia

#3F3F76

Tritanopia

#3F6C68

Achromatopsia

#454545

CSS Usage

background-color: #3F408D;
color: #3F408D;
border-color: #3F408D;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CECEE9
300
#AAABD9
400
#7D7EC5
500
#4F50B0
600
#3F408D
700
#323371
800
#272858
900
#202041
950
#141429

Contrast Checker

Text on white

9.02:1

AA Pass AAA Pass

Text on black

2.33:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026