#403859

#403859

Color Values

HEX

#403859

RGB

64, 56, 89

HSL

254.5, 22.8%, 28.4%

HSV

254.5, 37.1%, 34.9%

CMYK

28.1%, 37.1%, 0.0%, 65.1%

OKLCH

0.3639 0.0567 294.6

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#403859

#515938

Analogous

#384059

#503859

#403859

Triadic

#403859

#594038

#385940

Split Complementary

#403859

#595038

#405938

Tetradic

#403859

#593840

#515938

#385950

Color Blindness Simulation

Original

#403859

Protanopia

#3D3C51

Deuteranopia

#3D3E4F

Tritanopia

#404B49

Achromatopsia

#3C3C3C

CSS Usage

background-color: #403859;
color: #403859;
border-color: #403859;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F9
100
#EBEAF1
200
#D7D3E3
300
#BBB4D0
400
#968BB6
500
#70629D
600
#5A4F7D
700
#483F64
800
#38314E
900
#2B273A
950
#1B1825

Contrast Checker

Text on white

10.89:1

AA Pass AAA Pass

Text on black

1.93:1

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