#181F6B

#181F6B

Color Values

HEX

#181F6B

RGB

24, 31, 107

HSL

234.9, 63.4%, 25.7%

HSV

234.9, 77.6%, 42.0%

CMYK

77.6%, 71.0%, 0.0%, 58.0%

OKLCH

0.2922 0.1301 271.3

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#181F6B

#6B6418

Analogous

#18496B

#3A186B

#181F6B

Triadic

#181F6B

#6B181F

#1F6B18

Split Complementary

#181F6B

#6B3A18

#496B18

Tetradic

#181F6B

#6B1849

#6B6418

#186B3A

Color Blindness Simulation

Original

#181F6B

Protanopia

#1B1B59

Deuteranopia

#1B1A54

Tritanopia

#184A47

Achromatopsia

#232323

CSS Usage

background-color: #181F6B;
color: #181F6B;
border-color: #181F6B;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F3F4FB
100
#E4E5F7
200
#C5C9F2
300
#9BA2E9
400
#656FDC
500
#2F3CD0
600
#2530A7
700
#1E2785
800
#171E68
900
#151A4C
950
#0D1030

Contrast Checker

Text on white

14.51:1

AA Pass AAA Pass

Text on black

1.45:1

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