#3F43B0

#3F43B0

Color Values

HEX

#3F43B0

RGB

63, 67, 176

HSL

237.9, 47.3%, 46.9%

HSV

237.9, 64.2%, 69.0%

CMYK

64.2%, 61.9%, 0.0%, 31.0%

OKLCH

0.4478 0.1699 275.5

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#3F43B0

#B0AC3F

Analogous

#3F7CB0

#743FB0

#3F43B0

Triadic

#3F43B0

#B03F43

#43B03F

Split Complementary

#3F43B0

#B0743F

#7CB03F

Tetradic

#3F43B0

#B03F7C

#B0AC3F

#3FB074

Color Blindness Simulation

Original

#3F43B0

Protanopia

#414196

Deuteranopia

#40408F

Tritanopia

#3F817C

Achromatopsia

#4A4A4A

CSS Usage

background-color: #3F43B0;
color: #3F43B0;
border-color: #3F43B0;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CACCEC
300
#A5A7DF
400
#7477CD
500
#4347BC
600
#363996
700
#2B2E78
800
#22245E
900
#1C1D45
950
#12122C

Contrast Checker

Text on white

7.95:1

AA Pass AAA Pass

Text on black

2.64:1

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