#181B61

#181B61

Color Values

HEX

#181B61

RGB

24, 27, 97

HSL

237.5, 60.3%, 23.7%

HSV

237.5, 75.3%, 38.0%

CMYK

75.3%, 72.2%, 0.0%, 62.0%

OKLCH

0.2742 0.1209 273.3

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#181B61

#615E18

Analogous

#183F61

#391861

#181B61

Triadic

#181B61

#61181B

#1B6118

Split Complementary

#181B61

#613918

#3F6118

Tetradic

#181B61

#61183F

#615E18

#186139

Color Blindness Simulation

Original

#181B61

Protanopia

#191950

Deuteranopia

#19194C

Tritanopia

#184340

Achromatopsia

#1F1F1F

CSS Usage

background-color: #181B61;
color: #181B61;
border-color: #181B61;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F3F4FB
100
#E4E5F6
200
#C6C8F1
300
#9DA0E7
400
#686CDA
500
#3339CC
600
#282EA4
700
#202483
800
#191D66
900
#16184B
950
#0E0F2F

Contrast Checker

Text on white

15.35:1

AA Pass AAA Pass

Text on black

1.37:1

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