#303963

#303963

Color Values

HEX

#303963

RGB

48, 57, 99

HSL

229.4, 34.7%, 28.8%

HSV

229.4, 51.5%, 38.8%

CMYK

51.5%, 42.4%, 0.0%, 61.2%

OKLCH

0.3579 0.0737 273.0

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#303963

#635A30

Analogous

#305263

#403063

#303963

Triadic

#303963

#633039

#396330

Split Complementary

#303963

#634030

#526330

Tetradic

#303963

#633052

#635A30

#306340

Color Blindness Simulation

Original

#303963

Protanopia

#343459

Deuteranopia

#333356

Tritanopia

#30514F

Achromatopsia

#3A3A3A

CSS Usage

background-color: #303963;
color: #303963;
border-color: #303963;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F6FA
100
#E8EAF2
200
#CFD3E8
300
#ADB4D7
400
#808BC1
500
#5363AC
600
#434F89
700
#353F6E
800
#2A3156
900
#212740
950
#151828

Contrast Checker

Text on white

11.1:1

AA Pass AAA Pass

Text on black

1.89:1

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