#3F498F

#3F498F

Color Values

HEX

#3F498F

RGB

63, 73, 143

HSL

232.5, 38.8%, 40.4%

HSV

232.5, 55.9%, 56.1%

CMYK

55.9%, 49.0%, 0.0%, 43.9%

OKLCH

0.434 0.1149 274.5

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#3F498F

#8F853F

Analogous

#3F718F

#5D3F8F

#3F498F

Triadic

#3F498F

#8F3F49

#498F3F

Split Complementary

#3F498F

#8F5D3F

#718F3F

Tetradic

#3F498F

#8F3F71

#8F853F

#3F8F5D

Color Blindness Simulation

Original

#3F498F

Protanopia

#43437E

Deuteranopia

#43427A

Tritanopia

#3F716E

Achromatopsia

#4C4C4C

CSS Usage

background-color: #3F498F;
color: #3F498F;
border-color: #3F498F;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E9F3
200
#CDD1E9
300
#AAB0DA
400
#7C85C5
500
#4E5AB1
600
#3E488E
700
#323A71
800
#272D58
900
#202441
950
#141729

Contrast Checker

Text on white

8.2:1

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