#183A41

#183A41

Color Values

HEX

#183A41

RGB

24, 58, 65

HSL

190.2, 46.1%, 17.5%

HSV

190.2, 63.1%, 25.5%

CMYK

63.1%, 10.8%, 0.0%, 74.5%

OKLCH

0.3264 0.0412 212.9

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#183A41

#411F18

Analogous

#184134

#182641

#183A41

Triadic

#183A41

#41183A

#3A4118

Split Complementary

#183A41

#411826

#413418

Tetradic

#183A41

#341841

#411F18

#264118

Color Blindness Simulation

Original

#183A41

Protanopia

#27273F

Deuteranopia

#25223F

Tritanopia

#1A3E3E

Achromatopsia

#333333

CSS Usage

background-color: #183A41;
color: #183A41;
border-color: #183A41;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F4F9FA
100
#E6F2F4
200
#CBE6EC
300
#A6D4DE
400
#75BDCC
500
#45A6BA
600
#378595
700
#2C6A77
800
#22535D
900
#1C3E45
950
#12272B

Contrast Checker

Text on white

12.21:1

AA Pass AAA Pass

Text on black

1.72:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026