#303381

#303381

Color Values

HEX

#303381

RGB

48, 51, 129

HSL

237.8, 45.8%, 34.7%

HSV

237.8, 62.8%, 50.6%

CMYK

62.8%, 60.5%, 0.0%, 49.4%

OKLCH

0.3675 0.1289 276.3

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#303381

#817E30

Analogous

#305B81

#563081

#303381

Triadic

#303381

#813033

#338130

Split Complementary

#303381

#815630

#5B8130

Tetradic

#303381

#81305B

#817E30

#308156

Color Blindness Simulation

Original

#303381

Protanopia

#31316E

Deuteranopia

#31316A

Tritanopia

#305F5C

Achromatopsia

#383838

CSS Usage

background-color: #303381;
color: #303381;
border-color: #303381;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CBCCEC
300
#A6A8DE
400
#7579CC
500
#4549BA
600
#373B95
700
#2C2F77
800
#23255D
900
#1C1E44
950
#12132B

Contrast Checker

Text on white

10.96:1

AA Pass AAA Pass

Text on black

1.92:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026