#51646D

#51646D

Color Values

HEX

#51646D

RGB

81, 100, 109

HSL

199.3, 14.7%, 37.3%

HSV

199.3, 25.7%, 42.7%

CMYK

25.7%, 8.3%, 0.0%, 57.3%

OKLCH

0.4909 0.0271 228.2

Properties

Cool Dark Nearest: NCS S 6000-N Medium Dark Grey

Color Harmonies

Complementary

#51646D

#6D5A51

Analogous

#516D68

#51566D

#51646D

Triadic

#51646D

#6D5164

#646D51

Split Complementary

#51646D

#6D5156

#6D6851

Tetradic

#51646D

#68516D

#6D5A51

#566D51

Color Blindness Simulation

Original

#51646D

Protanopia

#59596B

Deuteranopia

#58576A

Tritanopia

#526969

Achromatopsia

#616161

CSS Usage

background-color: #51646D;
color: #51646D;
border-color: #51646D;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F8F8
100
#EBEEEF
200
#D6DDE1
300
#B9C5CB
400
#93A6AF
500
#6D8692
600
#576B75
700
#46565E
800
#364349
900
#2A3337
950
#1B2023

Contrast Checker

Text on white

6.19:1

AA Pass AAA Fail

Text on black

3.39:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026