#1B184F

#1B184F

Color Values

HEX

#1B184F

RGB

27, 24, 79

HSL

243.3, 53.4%, 20.2%

HSV

243.3, 69.6%, 31.0%

CMYK

65.8%, 69.6%, 0.0%, 69.0%

OKLCH

0.2523 0.0975 279.2

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#1B184F

#4C4F18

Analogous

#18304F

#37184F

#1B184F

Triadic

#1B184F

#4F1B18

#184F1B

Split Complementary

#1B184F

#4F3718

#304F18

Tetradic

#1B184F

#4F1830

#4C4F18

#184F37

Color Blindness Simulation

Original

#1B184F

Protanopia

#1A1A42

Deuteranopia

#1A1A3E

Tritanopia

#1B3735

Achromatopsia

#1D1D1D

CSS Usage

background-color: #1B184F;
color: #1B184F;
border-color: #1B184F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E6E5F5
200
#CAC8EE
300
#A5A1E2
400
#746ED3
500
#433BC4
600
#36309C
700
#2B267D
800
#211E62
900
#1C1948
950
#12102D

Contrast Checker

Text on white

16.28:1

AA Pass AAA Pass

Text on black

1.29:1

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