#181B40

#181B40

Color Values

HEX

#181B40

RGB

24, 27, 64

HSL

235.5, 45.5%, 17.3%

HSV

235.5, 62.5%, 25.1%

CMYK

62.5%, 57.8%, 0.0%, 74.9%

OKLCH

0.2425 0.0693 276.4

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#181B40

#403D18

Analogous

#182F40

#291840

#181B40

Triadic

#181B40

#40181B

#1B4018

Split Complementary

#181B40

#402918

#2F4018

Tetradic

#181B40

#40182F

#403D18

#184029

Color Blindness Simulation

Original

#181B40

Protanopia

#191937

Deuteranopia

#191935

Tritanopia

#18302E

Achromatopsia

#1D1D1D

CSS Usage

background-color: #181B40;
color: #181B40;
border-color: #181B40;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CBCDEC
300
#A6AADE
400
#767CCC
500
#454EBA
600
#383F94
700
#2C3277
800
#23275D
900
#1D2044
950
#12142B

Contrast Checker

Text on white

16.54:1

AA Pass AAA Pass

Text on black

1.27:1

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