#403654

#403654

Color Values

HEX

#403654

RGB

64, 54, 84

HSL

260.0, 21.7%, 27.1%

HSV

260.0, 35.7%, 32.9%

CMYK

23.8%, 35.7%, 0.0%, 67.1%

OKLCH

0.3568 0.0524 299.0

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#403654

#4A5436

Analogous

#363B54

#4F3654

#403654

Triadic

#403654

#544036

#365440

Split Complementary

#403654

#544F36

#3B5436

Tetradic

#403654

#54363B

#4A5436

#36544F

Color Blindness Simulation

Original

#403654

Protanopia

#3C3C4D

Deuteranopia

#3C3D4B

Tritanopia

#404746

Achromatopsia

#3A3A3A

CSS Usage

background-color: #403654;
color: #403654;
border-color: #403654;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D9D4E3
300
#BDB5CF
400
#9A8CB5
500
#76649B
600
#5F507C
700
#4C4063
800
#3B324E
900
#2D273A
950
#1D1925

Contrast Checker

Text on white

11.21:1

AA Pass AAA Pass

Text on black

1.87:1

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