#212345

#212345

Color Values

HEX

#212345

RGB

33, 35, 69

HSL

236.7, 35.3%, 20.0%

HSV

236.7, 52.2%, 27.1%

CMYK

52.2%, 49.3%, 0.0%, 72.9%

OKLCH

0.2732 0.0623 278.9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#212345

#454321

Analogous

#213545

#312145

#212345

Triadic

#212345

#452123

#234521

Split Complementary

#212345

#453121

#354521

Tetradic

#212345

#452135

#454321

#214531

Color Blindness Simulation

Original

#212345

Protanopia

#22223D

Deuteranopia

#22223B

Tritanopia

#213635

Achromatopsia

#252525

CSS Usage

background-color: #212345;
color: #212345;
border-color: #212345;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F5FA
100
#E8E8F3
200
#CFD0E8
300
#ACAFD7
400
#7F83C2
500
#5257AD
600
#42468A
700
#35386E
800
#292C56
900
#212340
950
#151628

Contrast Checker

Text on white

15.1:1

AA Pass AAA Pass

Text on black

1.39:1

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