#243D58

#243D58

Color Values

HEX

#243D58

RGB

36, 61, 88

HSL

211.2, 41.9%, 24.3%

HSV

211.2, 59.1%, 34.5%

CMYK

59.1%, 30.7%, 0.0%, 65.5%

OKLCH

0.3529 0.0567 251.4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#243D58

#583F24

Analogous

#245758

#252458

#243D58

Triadic

#243D58

#58243D

#3D5824

Split Complementary

#243D58

#582524

#575824

Tetradic

#243D58

#582457

#583F24

#245825

Color Blindness Simulation

Original

#243D58

Protanopia

#2F2F51

Deuteranopia

#2D2C50

Tritanopia

#254C4B

Achromatopsia

#3A3A3A

CSS Usage

background-color: #243D58;
color: #243D58;
border-color: #243D58;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F7FA
100
#E7EDF4
200
#CCDBEA
300
#A8C1DB
400
#799FC8
500
#4A7DB5
600
#3B6491
700
#2F5074
800
#253F5A
900
#1E3043
950
#131E2A

Contrast Checker

Text on white

11.15:1

AA Pass AAA Pass

Text on black

1.88:1

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