#181E2B

#181E2B

Color Values

HEX

#181E2B

RGB

24, 30, 43

HSL

221.1, 28.4%, 13.1%

HSV

221.1, 44.2%, 16.9%

CMYK

44.2%, 30.2%, 0.0%, 83.1%

OKLCH

0.2354 0.0267 265.2

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#181E2B

#2B2518

Analogous

#18272B

#1B182B

#181E2B

Triadic

#181E2B

#2B181E

#1E2B18

Split Complementary

#181E2B

#2B1B18

#272B18

Tetradic

#181E2B

#2B1827

#2B2518

#182B1B

Color Blindness Simulation

Original

#181E2B

Protanopia

#1B1B28

Deuteranopia

#1A1A27

Tritanopia

#182525

Achromatopsia

#1E1E1E

CSS Usage

background-color: #181E2B;
color: #181E2B;
border-color: #181E2B;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D1D8E5
300
#B0BBD3
400
#8697BB
500
#5B72A4
600
#495B83
700
#3A4969
800
#2E3952
900
#242C3D
950
#171C26

Contrast Checker

Text on white

16.67:1

AA Pass AAA Pass

Text on black

1.26:1

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