#181753

#181753

Color Values

HEX

#181753

RGB

24, 23, 83

HSL

241.0, 56.6%, 20.8%

HSV

241.0, 72.3%, 32.5%

CMYK

71.1%, 72.3%, 0.0%, 67.5%

OKLCH

0.252 0.1056 276.4

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#181753

#525317

Analogous

#173453

#361753

#181753

Triadic

#181753

#531817

#175318

Split Complementary

#181753

#533617

#345317

Tetradic

#181753

#531734

#525317

#175336

Color Blindness Simulation

Original

#181753

Protanopia

#181844

Deuteranopia

#181841

Tritanopia

#183936

Achromatopsia

#1C1C1C

CSS Usage

background-color: #181753;
color: #181753;
border-color: #181753;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E5E5F6
200
#C8C7F0
300
#A09FE4
400
#6D6BD6
500
#3A37C8
600
#2E2CA0
700
#252380
800
#1D1C64
900
#191849
950
#100F2E

Contrast Checker

Text on white

16.33:1

AA Pass AAA Pass

Text on black

1.29:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026