#18388C

#18388C

Color Values

HEX

#18388C

RGB

24, 56, 140

HSL

223.4, 70.7%, 32.2%

HSV

223.4, 82.9%, 54.9%

CMYK

82.9%, 60.0%, 0.0%, 45.1%

OKLCH

0.3742 0.1448 264.5

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#18388C

#8C6C18

Analogous

#18728C

#32188C

#18388C

Triadic

#18388C

#8C1838

#388C18

Split Complementary

#18388C

#8C3218

#728C18

Tetradic

#18388C

#8C1872

#8C6C18

#188C32

Color Blindness Simulation

Original

#18388C

Protanopia

#262678

Deuteranopia

#242273

Tritanopia

#1A6864

Achromatopsia

#373737

CSS Usage

background-color: #18388C;
color: #18388C;
border-color: #18388C;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F3F5FC
100
#E2E8F8
200
#C2D0F5
300
#97AEED
400
#5E83E3
500
#2557DA
600
#1E46AE
700
#18388B
800
#132C6D
900
#12234F
950
#0B1632

Contrast Checker

Text on white

10.59:1

AA Pass AAA Pass

Text on black

1.98:1

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