#3743BC

#3743BC

Color Values

HEX

#3743BC

RGB

55, 67, 188

HSL

234.6, 54.7%, 47.6%

HSV

234.6, 70.7%, 73.7%

CMYK

70.7%, 64.4%, 0.0%, 26.3%

OKLCH

0.4534 0.1878 272.0

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#3743BC

#BCB037

Analogous

#3785BC

#6D37BC

#3743BC

Triadic

#3743BC

#BC3743

#43BC37

Split Complementary

#3743BC

#BC6D37

#85BC37

Tetradic

#3743BC

#BC3785

#BCB037

#37BC6D

Color Blindness Simulation

Original

#3743BC

Protanopia

#3C3C9F

Deuteranopia

#3C3B98

Tritanopia

#388883

Achromatopsia

#494949

CSS Usage

background-color: #3743BC;
color: #3743BC;
border-color: #3743BC;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F4F4FB
100
#E5E6F5
200
#C8CBEF
300
#A0A6E3
400
#6D76D4
500
#3A46C5
600
#2E389E
700
#252D7E
800
#1D2363
900
#191D48
950
#10122E

Contrast Checker

Text on white

7.8:1

AA Pass AAA Pass

Text on black

2.69:1

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