#3F40AE

#3F40AE

Color Values

HEX

#3F40AE

RGB

63, 64, 174

HSL

239.5, 46.8%, 46.5%

HSV

239.5, 63.8%, 68.2%

CMYK

63.8%, 63.2%, 0.0%, 31.8%

OKLCH

0.4408 0.1709 276.4

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#3F40AE

#AEAD3F

Analogous

#3F77AE

#763FAE

#3F40AE

Triadic

#3F40AE

#AE3F40

#40AE3F

Split Complementary

#3F40AE

#AE763F

#77AE3F

Tetradic

#3F40AE

#AE3F77

#AEAD3F

#3FAE76

Color Blindness Simulation

Original

#3F40AE

Protanopia

#3F3F93

Deuteranopia

#3F3F8D

Tritanopia

#3F7E7A

Achromatopsia

#484848

CSS Usage

background-color: #3F40AE;
color: #3F40AE;
border-color: #3F40AE;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CBCBEC
300
#A5A6DE
400
#7475CD
500
#4445BB
600
#363796
700
#2B2C78
800
#22225E
900
#1C1C45
950
#12122B

Contrast Checker

Text on white

8.22:1

AA Pass AAA Pass

Text on black

2.56:1

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