#213247

#213247

Color Values

HEX

#213247

RGB

33, 50, 71

HSL

213.2, 36.5%, 20.4%

HSV

213.2, 53.5%, 27.8%

CMYK

53.5%, 29.6%, 0.0%, 72.2%

OKLCH

0.3125 0.0442 254.2

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#213247

#473621

Analogous

#214547

#232147

#213247

Triadic

#213247

#472132

#324721

Split Complementary

#213247

#472321

#454721

Tetradic

#213247

#472145

#473621

#214723

Color Blindness Simulation

Original

#213247

Protanopia

#282942

Deuteranopia

#272641

Tritanopia

#223E3D

Achromatopsia

#303030

CSS Usage

background-color: #213247;
color: #213247;
border-color: #213247;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F7FA
100
#E8EDF3
200
#CEDAE8
300
#ABBFD8
400
#7E9DC3
500
#517BAE
600
#41628B
700
#344E6F
800
#283D57
900
#212F40
950
#151E29

Contrast Checker

Text on white

13.03:1

AA Pass AAA Pass

Text on black

1.61:1

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