#243C51

#243C51

Color Values

HEX

#243C51

RGB

36, 60, 81

HSL

208.0, 38.5%, 22.9%

HSV

208.0, 55.6%, 31.8%

CMYK

55.6%, 25.9%, 0.0%, 68.2%

OKLCH

0.3464 0.0476 246.1

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#243C51

#513924

Analogous

#24514F

#242551

#243C51

Triadic

#243C51

#51243C

#3C5124

Split Complementary

#243C51

#512425

#514F24

Tetradic

#243C51

#4F2451

#513924

#255124

Color Blindness Simulation

Original

#243C51

Protanopia

#2E2F4C

Deuteranopia

#2D2B4B

Tritanopia

#254847

Achromatopsia

#383838

CSS Usage

background-color: #243C51;
color: #243C51;
border-color: #243C51;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F8FA
100
#E7EEF3
200
#CEDCE9
300
#AAC3D9
400
#7CA3C5
500
#4E83B1
600
#3F698D
700
#325471
800
#274158
900
#203241
950
#141F29

Contrast Checker

Text on white

11.41:1

AA Pass AAA Pass

Text on black

1.84:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026