#403B54

#403B54

Color Values

HEX

#403B54

RGB

64, 59, 84

HSL

252.0, 17.5%, 28.0%

HSV

252.0, 29.8%, 32.9%

CMYK

23.8%, 29.8%, 0.0%, 67.1%

OKLCH

0.3681 0.0429 293.4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#403B54

#4F543B

Analogous

#3B4254

#4C3B54

#403B54

Triadic

#403B54

#54403B

#3B5440

Split Complementary

#403B54

#544C3B

#42543B

Tetradic

#403B54

#543B42

#4F543B

#3B544C

Color Blindness Simulation

Original

#403B54

Protanopia

#3E3E4E

Deuteranopia

#3E3E4C

Tritanopia

#404948

Achromatopsia

#3E3E3E

CSS Usage

background-color: #403B54;
color: #403B54;
border-color: #403B54;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F8
100
#ECEAF0
200
#D8D5E2
300
#BBB7CD
400
#9790B1
500
#726996
600
#5B5478
700
#494360
800
#39354B
900
#2C2938
950
#1C1A23

Contrast Checker

Text on white

10.65:1

AA Pass AAA Pass

Text on black

1.97:1

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