#021D37

#021D37

Color Values

HEX

#021D37

RGB

2, 29, 55

HSL

209.4, 93.0%, 11.2%

HSV

209.4, 96.4%, 21.6%

CMYK

96.4%, 47.3%, 0.0%, 78.4%

OKLCH

0.2269 0.0604 250.2

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#021D37

#371C02

Analogous

#023737

#020337

#021D37

Triadic

#021D37

#37021D

#1D3702

Split Complementary

#021D37

#370203

#373702

Tetradic

#021D37

#370237

#371C02

#033702

Color Blindness Simulation

Original

#021D37

Protanopia

#0E0E31

Deuteranopia

#0C0A2F

Tritanopia

#032C2B

Achromatopsia

#191919

CSS Usage

background-color: #021D37;
color: #021D37;
border-color: #021D37;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F1F7FD
100
#DFEDFB
200
#BADCFD
300
#89C3FB
400
#49A2F8
500
#0982F6
600
#0768C5
700
#06539D
800
#04417B
900
#083159
950
#051F38

Contrast Checker

Text on white

17.02:1

AA Pass AAA Pass

Text on black

1.23:1

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