#4240D1

#4240D1

Color Values

HEX

#4240D1

RGB

66, 64, 209

HSL

240.8, 61.2%, 53.5%

HSV

240.8, 69.4%, 82.0%

CMYK

68.4%, 69.4%, 0.0%, 18.0%

OKLCH

0.4745 0.215 275.1

Properties

Cool Dark Nearest: Purple Heart

Color Harmonies

Complementary

#4240D1

#CFD140

Analogous

#4086D1

#8A40D1

#4240D1

Triadic

#4240D1

#D14240

#40D142

Split Complementary

#4240D1

#D18A40

#86D140

Tetradic

#4240D1

#D14086

#CFD140

#40D18A

Color Blindness Simulation

Original

#4240D1

Protanopia

#4141AE

Deuteranopia

#4141A5

Tritanopia

#42928C

Achromatopsia

#4B4B4B

CSS Usage

background-color: #4240D1;
color: #4240D1;
border-color: #4240D1;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F3F3FB
100
#E4E4F6
200
#C6C5F1
300
#9D9CE7
400
#6867DA
500
#3431CE
600
#2928A4
700
#212084
800
#1A1967
900
#16164B
950
#0E0E2F

Contrast Checker

Text on white

7.28:1

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