#243D54

#243D54

Color Values

HEX

#243D54

RGB

36, 61, 84

HSL

208.8, 40.0%, 23.5%

HSV

208.8, 57.1%, 32.9%

CMYK

57.1%, 27.4%, 0.0%, 67.1%

OKLCH

0.3507 0.0509 247.5

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#243D54

#543B24

Analogous

#245453

#242554

#243D54

Triadic

#243D54

#54243D

#3D5424

Split Complementary

#243D54

#542425

#545324

Tetradic

#243D54

#532454

#543B24

#255424

Color Blindness Simulation

Original

#243D54

Protanopia

#2F2F4E

Deuteranopia

#2D2C4D

Tritanopia

#254A49

Achromatopsia

#393939

CSS Usage

background-color: #243D54;
color: #243D54;
border-color: #243D54;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F7FA
100
#E7EDF3
200
#CDDCEA
300
#A9C3DA
400
#7BA2C6
500
#4C82B2
600
#3D688F
700
#315372
800
#264159
900
#1F3142
950
#141F2A

Contrast Checker

Text on white

11.23:1

AA Pass AAA Pass

Text on black

1.87:1

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