#4243C1

#4243C1

Color Values

HEX

#4243C1

RGB

66, 67, 193

HSL

239.5, 50.6%, 50.8%

HSV

239.5, 65.8%, 75.7%

CMYK

65.8%, 65.3%, 0.0%, 24.3%

OKLCH

0.4646 0.1916 275.6

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#4243C1

#C1C042

Analogous

#4283C1

#8042C1

#4243C1

Triadic

#4243C1

#C14243

#43C142

Split Complementary

#4243C1

#C18042

#83C142

Tetradic

#4243C1

#C14283

#C1C042

#42C180

Color Blindness Simulation

Original

#4243C1

Protanopia

#4242A3

Deuteranopia

#42429B

Tritanopia

#428A85

Achromatopsia

#4C4C4C

CSS Usage

background-color: #4243C1;
color: #4243C1;
border-color: #4243C1;
Nearest Tailwind: Blue 700 #1D4ED8

Tailwind Shades

50
#F4F4FB
100
#E5E6F5
200
#C9CAED
300
#A3A3E1
400
#7172D0
500
#3F40C0
600
#32339A
700
#28297B
800
#1F2060
900
#1A1B47
950
#11112D

Contrast Checker

Text on white

7.49:1

AA Pass AAA Pass

Text on black

2.8:1

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