#181D6D

#181D6D

Color Values

HEX

#181D6D

RGB

24, 29, 109

HSL

236.5, 63.9%, 26.1%

HSV

236.5, 78.0%, 42.7%

CMYK

78.0%, 73.4%, 0.0%, 57.3%

OKLCH

0.2908 0.1353 271.7

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#181D6D

#6D6818

Analogous

#18486D

#3E186D

#181D6D

Triadic

#181D6D

#6D181D

#1D6D18

Split Complementary

#181D6D

#6D3E18

#486D18

Tetradic

#181D6D

#6D1848

#6D6818

#186D3E

Color Blindness Simulation

Original

#181D6D

Protanopia

#1A1A5A

Deuteranopia

#1A1955

Tritanopia

#184A47

Achromatopsia

#222222

CSS Usage

background-color: #181D6D;
color: #181D6D;
border-color: #181D6D;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F3F4FC
100
#E3E5F7
200
#C4C7F2
300
#9B9FE9
400
#646BDD
500
#2E38D1
600
#252CA7
700
#1D2486
800
#171C68
900
#15184C
950
#0D0F30

Contrast Checker

Text on white

14.63:1

AA Pass AAA Pass

Text on black

1.44:1

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