#303F63

#303F63

Color Values

HEX

#303F63

RGB

48, 63, 99

HSL

222.4, 34.7%, 28.8%

HSV

222.4, 51.5%, 38.8%

CMYK

51.5%, 36.4%, 0.0%, 61.2%

OKLCH

0.3722 0.0652 266.1

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#303F63

#635430

Analogous

#305863

#3A3063

#303F63

Triadic

#303F63

#63303F

#3F6330

Split Complementary

#303F63

#633A30

#586330

Tetradic

#303F63

#633058

#635430

#30633A

Color Blindness Simulation

Original

#303F63

Protanopia

#36375A

Deuteranopia

#363458

Tritanopia

#315352

Achromatopsia

#3E3E3E

CSS Usage

background-color: #303F63;
color: #303F63;
border-color: #303F63;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F5F6FA
100
#E8EBF2
200
#CFD6E8
300
#ADB9D7
400
#8093C1
500
#536DAC
600
#435789
700
#35466E
800
#2A3756
900
#212A40
950
#151B28

Contrast Checker

Text on white

10.41:1

AA Pass AAA Pass

Text on black

2.02:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026