#2121CF

#2121CF

Color Values

HEX

#2121CF

RGB

33, 33, 207

HSL

240,0, 72,5%, 47,1%

HSV

240,0, 84,1%, 81,2%

CMYK

84,1%, 84,1%, 0,0%, 18,8%

OKLCH

0,4155 0,2478 268,6

Properties

Cool Dark Nearest: mediumblue

Color Harmonies

Complementary

#2121CF

#CFCF21

Analogous

#2178CF

#7821CF

#2121CF

Triadic

#2121CF

#CF2121

#21CF21

Split Complementary

#2121CF

#CF7821

#78CF21

Tetradic

#2121CF

#CF2178

#CFCF21

#21CF78

Color Blindness Simulation

Original

#2121CF

Protanopia

#2121A5

Deuteranopia

#21219B

Tritanopia

#21847C

Achromatopsia

#2E2E2E

CSS Usage

background-color: #2121CF;
color: #2121CF;
border-color: #2121CF;
Nearest Tailwind: Violet 700 #6D28D9

Tailwind Shades

50
#F3F3FC
100
#E2E2F8
200
#C1C1F5
300
#9595EE
400
#5C5CE5
500
#2323DC
600
#1C1CB0
700
#16168D
800
#12126E
900
#111150
950
#0B0B33

Contrast Checker

Text on white

9,62:1

AA Pass AAA Pass

Text on black

2,18:1

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