#21033F

#21033F

Color Values

HEX

#21033F

RGB

33, 3, 63

HSL

270.0, 90.9%, 12.9%

HSV

270.0, 95.2%, 24.7%

CMYK

47.6%, 95.2%, 0.0%, 75.3%

OKLCH

0.2092 0.1038 300.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#21033F

#213F03

Analogous

#03033F

#3F033F

#21033F

Triadic

#21033F

#3F2103

#033F21

Split Complementary

#21033F

#3F3F03

#033F03

Tetradic

#21033F

#3F0303

#213F03

#033F3F

Color Blindness Simulation

Original

#21033F

Protanopia

#141430

Deuteranopia

#16182D

Tritanopia

#1F2522

Achromatopsia

#0E0E0E

CSS Usage

background-color: #21033F;
color: #21033F;
border-color: #21033F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F1FD
100
#EDDFFB
200
#DBBBFC
300
#C28AF9
400
#A14BF6
500
#800CF3
600
#6609C3
700
#52079C
800
#40067A
900
#300958
950
#1F0638

Contrast Checker

Text on white

18.27:1

AA Pass AAA Pass

Text on black

1.15:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026