#343C91

#343C91

Color Values

HEX

#343C91

RGB

52, 60, 145

HSL

234.8, 47.2%, 38.6%

HSV

234.8, 64.1%, 56.9%

CMYK

64.1%, 58.6%, 0.0%, 43.1%

OKLCH

0.4013 0.1387 274.3

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#343C91

#918934

Analogous

#346A91

#5A3491

#343C91

Triadic

#343C91

#91343C

#3C9134

Split Complementary

#343C91

#915A34

#6A9134

Tetradic

#343C91

#91346A

#918934

#34915A

Color Blindness Simulation

Original

#343C91

Protanopia

#37387C

Deuteranopia

#373678

Tritanopia

#346C69

Achromatopsia

#404040

CSS Usage

background-color: #343C91;
color: #343C91;
border-color: #343C91;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CACDEC
300
#A5AADF
400
#747CCD
500
#434EBC
600
#363E96
700
#2B3278
800
#22275E
900
#1C1F45
950
#12142C

Contrast Checker

Text on white

9.54:1

AA Pass AAA Pass

Text on black

2.2:1

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