#3F456A

#3F456A

Color Values

HEX

#3F456A

RGB

63, 69, 106

HSL

231.6, 25.4%, 33.1%

HSV

231.6, 40.6%, 41.6%

CMYK

40.6%, 34.9%, 0.0%, 58.4%

OKLCH

0.4019 0.0628 276.2

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F456A

#6A643F

Analogous

#3F5A6A

#4E3F6A

#3F456A

Triadic

#3F456A

#6A3F45

#456A3F

Split Complementary

#3F456A

#6A4E3F

#5A6A3F

Tetradic

#3F456A

#6A3F5A

#6A643F

#3F6A4E

Color Blindness Simulation

Original

#3F456A

Protanopia

#424261

Deuteranopia

#41415F

Tritanopia

#3F5A58

Achromatopsia

#464646

CSS Usage

background-color: #3F456A;
color: #3F456A;
border-color: #3F456A;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#E9EAF1
200
#D2D5E4
300
#B2B7D1
400
#898FB9
500
#5F68A0
600
#4C5380
700
#3D4366
800
#303450
900
#25283C
950
#181A26

Contrast Checker

Text on white

9.25:1

AA Pass AAA Pass

Text on black

2.27:1

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