#3F4689

#3F4689

Color Values

HEX

#3F4689

RGB

63, 70, 137

HSL

234.3, 37.0%, 39.2%

HSV

234.3, 54.0%, 53.7%

CMYK

54.0%, 48.9%, 0.0%, 46.3%

OKLCH

0.4235 0.1101 276.1

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#3F4689

#89823F

Analogous

#3F6B89

#5D3F89

#3F4689

Triadic

#3F4689

#893F46

#46893F

Split Complementary

#3F4689

#895D3F

#6B893F

Tetradic

#3F4689

#893F6B

#89823F

#3F895D

Color Blindness Simulation

Original

#3F4689

Protanopia

#424279

Deuteranopia

#424175

Tritanopia

#3F6C69

Achromatopsia

#494949

CSS Usage

background-color: #3F4689;
color: #3F4689;
border-color: #3F4689;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E9F3
200
#CED1E9
300
#ABAFD8
400
#7E84C4
500
#5059AF
600
#40478C
700
#333970
800
#282D57
900
#202341
950
#141629

Contrast Checker

Text on white

8.58:1

AA Pass AAA Pass

Text on black

2.45:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026