#213F3F

#213F3F

Color Values

HEX

#213F3F

RGB

33, 63, 63

HSL

180.0, 31.2%, 18.8%

HSV

180.0, 47.6%, 24.7%

CMYK

47.6%, 0.0%, 0.0%, 75.3%

OKLCH

0.3444 0.0359 195.6

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#213F3F

#3F2121

Analogous

#213F30

#21303F

#213F3F

Triadic

#213F3F

#3F213F

#3F3F21

Split Complementary

#213F3F

#3F2130

#3F3021

Tetradic

#213F3F

#30213F

#3F2121

#303F21

Color Blindness Simulation

Original

#213F3F

Protanopia

#2E2E3F

Deuteranopia

#2C2A3F

Tritanopia

#223F3F

Achromatopsia

#393939

CSS Usage

background-color: #213F3F;
color: #213F3F;
border-color: #213F3F;
Nearest Tailwind: Teal 950 #042F2E

Tailwind Shades

50
#F5F9F9
100
#E8F2F2
200
#D0E6E6
300
#AFD5D5
400
#83BEBE
500
#58A7A7
600
#468686
700
#386B6B
800
#2C5454
900
#233E3E
950
#162727

Contrast Checker

Text on white

11.37:1

AA Pass AAA Pass

Text on black

1.85:1

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