#343F51

#343F51

Color Values

HEX

#343F51

RGB

52, 63, 81

HSL

217.2, 21.8%, 26.1%

HSV

217.2, 35.8%, 31.8%

CMYK

35.8%, 22.2%, 0.0%, 68.2%

OKLCH

0.3655 0.0345 260.2

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#343F51

#514634

Analogous

#344E51

#383451

#343F51

Triadic

#343F51

#51343F

#3F5134

Split Complementary

#343F51

#513834

#4E5134

Tetradic

#343F51

#51344E

#514634

#345138

Color Blindness Simulation

Original

#343F51

Protanopia

#39394D

Deuteranopia

#38374C

Tritanopia

#354948

Achromatopsia

#3E3E3E

CSS Usage

background-color: #343F51;
color: #343F51;
border-color: #343F51;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F9
100
#EAECF0
200
#D4D9E3
300
#B4BFCF
400
#8C9CB5
500
#64799B
600
#50617C
700
#404D63
800
#323C4E
900
#272E3A
950
#191D25

Contrast Checker

Text on white

10.63:1

AA Pass AAA Pass

Text on black

1.98:1

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