#181F45

#181F45

Color Values

HEX

#181F45

RGB

24, 31, 69

HSL

230.7, 48.4%, 18.2%

HSV

230.7, 65.2%, 27.1%

CMYK

65.2%, 55.1%, 0.0%, 72.9%

OKLCH

0.2562 0.0714 272.5

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#181F45

#453E18

Analogous

#183545

#271845

#181F45

Triadic

#181F45

#45181F

#1F4518

Split Complementary

#181F45

#452718

#354518

Tetradic

#181F45

#451835

#453E18

#184527

Color Blindness Simulation

Original

#181F45

Protanopia

#1B1B3C

Deuteranopia

#1B1A3A

Tritanopia

#183533

Achromatopsia

#202020

CSS Usage

background-color: #181F45;
color: #181F45;
border-color: #181F45;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FA
100
#E6E8F4
200
#CACFED
300
#A4ADDF
400
#7381CE
500
#4255BD
600
#354497
700
#2A3679
800
#212A5F
900
#1B2246
950
#11152C

Contrast Checker

Text on white

15.9:1

AA Pass AAA Pass

Text on black

1.32:1

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