#181B34

#181B34

Color Values

HEX

#181B34

RGB

24, 27, 52

HSL

233.6, 36.8%, 14.9%

HSV

233.6, 53.8%, 20.4%

CMYK

53.8%, 48.1%, 0.0%, 79.6%

OKLCH

0.2332 0.0482 276.8

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#181B34

#343118

Analogous

#182934

#231834

#181B34

Triadic

#181B34

#34181B

#1B3418

Split Complementary

#181B34

#342318

#293418

Tetradic

#181B34

#341829

#343118

#183423

Color Blindness Simulation

Original

#181B34

Protanopia

#19192E

Deuteranopia

#19192C

Tritanopia

#182928

Achromatopsia

#1C1C1C

CSS Usage

background-color: #181B34;
color: #181B34;
border-color: #181B34;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F5F5FA
100
#E8E9F3
200
#CED1E8
300
#ABB0D8
400
#7E85C3
500
#515BAE
600
#40488C
700
#343A70
800
#282D57
900
#202440
950
#141729

Contrast Checker

Text on white

16.86:1

AA Pass AAA Pass

Text on black

1.25:1

AA Fail AAA Fail

Brands Using This Color

monday.com

monday.com

Mirage

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