#21236B

#21236B

Color Values

HEX

#21236B

RGB

33, 35, 107

HSL

238.4, 52.9%, 27.5%

HSV

238.4, 69.2%, 42.0%

CMYK

69.2%, 67.3%, 0.0%, 58.0%

OKLCH

0.3057 0.1224 275.2

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#21236B

#6B6921

Analogous

#21486B

#44216B

#21236B

Triadic

#21236B

#6B2123

#236B21

Split Complementary

#21236B

#6B4421

#486B21

Tetradic

#21236B

#6B2148

#6B6921

#216B44

Color Blindness Simulation

Original

#21236B

Protanopia

#22225A

Deuteranopia

#222255

Tritanopia

#214C49

Achromatopsia

#282828

CSS Usage

background-color: #21236B;
color: #21236B;
border-color: #21236B;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E5E6F5
200
#C8C9EE
300
#A1A3E2
400
#6F71D3
500
#3C40C3
600
#30339C
700
#26297D
800
#1E2061
900
#191B48
950
#10112D

Contrast Checker

Text on white

13.84:1

AA Pass AAA Pass

Text on black

1.52:1

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