#3F4CB2

#3F4CB2

Color Values

HEX

#3F4CB2

RGB

63, 76, 178

HSL

233,2, 47,7%, 47,3%

HSV

233,2, 64,6%, 69,8%

CMYK

64,6%, 57,3%, 0,0%, 30,2%

OKLCH

0,4661 0,1612 273,0

Properties

Cool Dark Nearest: royalblue 3

Color Harmonies

Complementary

#3F4CB2

#B2A53F

Analogous

#3F86B2

#6C3FB2

#3F4CB2

Triadic

#3F4CB2

#B23F4C

#4CB23F

Split Complementary

#3F4CB2

#B26C3F

#86B23F

Tetradic

#3F4CB2

#B23F86

#B2A53F

#3FB26C

Color Blindness Simulation

Original

#3F4CB2

Protanopia

#454599

Deuteranopia

#444393

Tritanopia

#408682

Achromatopsia

#515151

CSS Usage

background-color: #3F4CB2;
color: #3F4CB2;
border-color: #3F4CB2;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F4F5FA
100
#E6E8F4
200
#CACEEC
300
#A5ABDF
400
#747ECE
500
#4350BC
600
#354097
700
#2B3379
800
#21285E
900
#1C2045
950
#11142C

Contrast Checker

Text on white

7,27:1

AA Pass AAA Pass

Text on black

2,89:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026