#181F89

#181F89

Color Values

HEX

#181F89

RGB

24, 31, 137

HSL

236.3, 70.2%, 31.6%

HSV

236.3, 82.5%, 53.7%

CMYK

82.5%, 77.4%, 0.0%, 46.3%

OKLCH

0.3256 0.1701 269.6

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#181F89

#898218

Analogous

#185889

#4A1889

#181F89

Triadic

#181F89

#89181F

#1F8918

Split Complementary

#181F89

#894A18

#588918

Tetradic

#181F89

#891858

#898218

#18894A

Color Blindness Simulation

Original

#181F89

Protanopia

#1B1B6F

Deuteranopia

#1B1A69

Tritanopia

#185B57

Achromatopsia

#252525

CSS Usage

background-color: #181F89;
color: #181F89;
border-color: #181F89;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F3FC
100
#E2E4F8
200
#C2C5F4
300
#979CED
400
#5E67E3
500
#2631D9
600
#1E27AE
700
#181F8B
800
#13196D
900
#12164F
950
#0B0E32

Contrast Checker

Text on white

13.16:1

AA Pass AAA Pass

Text on black

1.6:1

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