#181D29

#181D29

Color Values

HEX

#181D29

RGB

24, 29, 41

HSL

222.4, 26.2%, 12.7%

HSV

222.4, 41.5%, 16.1%

CMYK

41.5%, 29.3%, 0.0%, 83.9%

OKLCH

0.2315 0.0245 266.9

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#181D29

#292418

Analogous

#182529

#1B1829

#181D29

Triadic

#181D29

#29181D

#1D2918

Split Complementary

#181D29

#291B18

#252918

Tetradic

#181D29

#291825

#292418

#18291B

Color Blindness Simulation

Original

#181D29

Protanopia

#1A1A26

Deuteranopia

#1A1925

Tritanopia

#182423

Achromatopsia

#1D1D1D

CSS Usage

background-color: #181D29;
color: #181D29;
border-color: #181D29;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D2D7E5
300
#B2BBD2
400
#8896B9
500
#5E72A1
600
#4B5B81
700
#3C4967
800
#2F3950
900
#252C3C
950
#171C26

Contrast Checker

Text on white

16.85:1

AA Pass AAA Pass

Text on black

1.25:1

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