#403C8D

#403C8D

Color Values

HEX

#403C8D

RGB

64, 60, 141

HSL

243.0, 40.3%, 39.4%

HSV

243.0, 57.4%, 55.3%

CMYK

54.6%, 57.4%, 0.0%, 44.7%

OKLCH

0.4071 0.1302 281.1

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#403C8D

#898D3C

Analogous

#3C608D

#693C8D

#403C8D

Triadic

#403C8D

#8D403C

#3C8D40

Split Complementary

#403C8D

#8D693C

#608D3C

Tetradic

#403C8D

#8D3C60

#898D3C

#3C8D69

Color Blindness Simulation

Original

#403C8D

Protanopia

#3E3E79

Deuteranopia

#3E3F75

Tritanopia

#406A67

Achromatopsia

#434343

CSS Usage

background-color: #403C8D;
color: #403C8D;
border-color: #403C8D;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CECDEA
300
#ACA9DA
400
#7E7BC7
500
#514CB3
600
#413D8F
700
#343172
800
#292659
900
#211F42
950
#15142A

Contrast Checker

Text on white

9.34:1

AA Pass AAA Pass

Text on black

2.25:1

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