#51647F

#51647F

Color Values

HEX

#51647F

RGB

81, 100, 127

HSL

215.2, 22.1%, 40.8%

HSV

215.2, 36.2%, 49.8%

CMYK

36.2%, 21.3%, 0.0%, 50.2%

OKLCH

0.4984 0.0492 257.2

Properties

Cool Dark Nearest: RAL 5014 Pigeon Blue

Color Harmonies

Complementary

#51647F

#7F6C51

Analogous

#517B7F

#55517F

#51647F

Triadic

#51647F

#7F5164

#647F51

Split Complementary

#51647F

#7F5551

#7B7F51

Tetradic

#51647F

#7F517B

#7F6C51

#517F55

Color Blindness Simulation

Original

#51647F

Protanopia

#595978

Deuteranopia

#585777

Tritanopia

#527372

Achromatopsia

#626262

CSS Usage

background-color: #51647F;
color: #51647F;
border-color: #51647F;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F9
100
#EAEDF1
200
#D3DAE3
300
#B4BFCF
400
#8C9DB6
500
#637B9C
600
#4F627D
700
#404E64
800
#323D4E
900
#272F3A
950
#191E25

Contrast Checker

Text on white

6.04:1

AA Pass AAA Fail

Text on black

3.48:1

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