#3F40C6

#3F40C6

Color Values

HEX

#3F40C6

RGB

63, 64, 198

HSL

239.6, 54.2%, 51.2%

HSV

239.6, 68.2%, 77.6%

CMYK

68.2%, 67.7%, 0.0%, 22.4%

OKLCH

0.4623 0.2021 274.8

Properties

Cool Dark Nearest: Purple Heart

Color Harmonies

Complementary

#3F40C6

#C6C53F

Analogous

#3F83C6

#823FC6

#3F40C6

Triadic

#3F40C6

#C63F40

#40C63F

Split Complementary

#3F40C6

#C6823F

#83C63F

Tetradic

#3F40C6

#C63F83

#C6C53F

#3FC682

Color Blindness Simulation

Original

#3F40C6

Protanopia

#3F3FA6

Deuteranopia

#3F3F9E

Tritanopia

#3F8C86

Achromatopsia

#494949

CSS Usage

background-color: #3F40C6;
color: #3F40C6;
border-color: #3F40C6;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F4F4FB
100
#E5E5F5
200
#C8C8EF
300
#A1A1E3
400
#6E6ED4
500
#3A3BC5
600
#2F2F9D
700
#25267E
800
#1D1E62
900
#191948
950
#10102E

Contrast Checker

Text on white

7.61:1

AA Pass AAA Pass

Text on black

2.76:1

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