#403F65

#403F65

Color Values

HEX

#403F65

RGB

64, 63, 101

HSL

241.6, 23.2%, 32.2%

HSV

241.6, 37.6%, 39.6%

CMYK

36.6%, 37.6%, 0.0%, 60.4%

OKLCH

0.3863 0.064 284.2

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#403F65

#64653F

Analogous

#3F5165

#533F65

#403F65

Triadic

#403F65

#65403F

#3F6540

Split Complementary

#403F65

#65533F

#51653F

Tetradic

#403F65

#653F51

#64653F

#3F6553

Color Blindness Simulation

Original

#403F65

Protanopia

#40405C

Deuteranopia

#40405A

Tritanopia

#405553

Achromatopsia

#424242

CSS Usage

background-color: #403F65;
color: #403F65;
border-color: #403F65;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EAEAF1
200
#D3D3E4
300
#B4B4D0
400
#8C8BB7
500
#63629D
600
#504E7E
700
#403F65
800
#32314F
900
#27263B
950
#191825

Contrast Checker

Text on white

9.92:1

AA Pass AAA Pass

Text on black

2.12:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026