#51576B

#51576B

Color Values

HEX

#51576B

RGB

81, 87, 107

HSL

226.2, 13.8%, 36.9%

HSV

226.2, 24.3%, 42.0%

CMYK

24.3%, 18.7%, 0.0%, 58.0%

OKLCH

0.4592 0.0335 271.9

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#51576B

#6B6551

Analogous

#51646B

#58516B

#51576B

Triadic

#51576B

#6B5157

#576B51

Split Complementary

#51576B

#6B5851

#646B51

Tetradic

#51576B

#6B5164

#6B6551

#516B58

Color Blindness Simulation

Original

#51576B

Protanopia

#545466

Deuteranopia

#535365

Tritanopia

#516262

Achromatopsia

#575757

CSS Usage

background-color: #51576B;
color: #51576B;
border-color: #51576B;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F8
100
#EBECEF
200
#D6D9E0
300
#B9BDCA
400
#949AAE
500
#6E7691
600
#585E74
700
#464C5D
800
#373B49
900
#2A2D36
950
#1B1D22

Contrast Checker

Text on white

7.18:1

AA Pass AAA Pass

Text on black

2.93:1

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