#181C64

#181C64

Color Values

HEX

#181C64

RGB

24, 28, 100

HSL

236.8, 61.3%, 24.3%

HSV

236.8, 76.0%, 39.2%

CMYK

76.0%, 72.0%, 0.0%, 60.8%

OKLCH

0.2792 0.1239 272.7

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#181C64

#646018

Analogous

#184264

#3A1864

#181C64

Triadic

#181C64

#64181C

#1C6418

Split Complementary

#181C64

#643A18

#426418

Tetradic

#181C64

#641842

#646018

#18643A

Color Blindness Simulation

Original

#181C64

Protanopia

#1A1A53

Deuteranopia

#1A194E

Tritanopia

#184542

Achromatopsia

#202020

CSS Usage

background-color: #181C64;
color: #181C64;
border-color: #181C64;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F3F4FB
100
#E4E5F6
200
#C5C8F1
300
#9CA0E7
400
#676DDA
500
#313ACE
600
#272EA5
700
#202584
800
#191D67
900
#16194B
950
#0E102F

Contrast Checker

Text on white

15.12:1

AA Pass AAA Pass

Text on black

1.39:1

AA Fail AAA Fail

Related Articles

Tutorials

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

ม.ค. 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

ม.ค. 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

ม.ค. 15, 2026