#231B89

#231B89

Color Values

HEX

#231B89

RGB

35, 27, 137

HSL

244.4, 67.1%, 32.2%

HSV

244.4, 80.3%, 53.7%

CMYK

74.5%, 80.3%, 0.0%, 46.3%

OKLCH

0.3264 0.171 274.6

Properties

Cool Dark Nearest: navy

Color Harmonies

Complementary

#231B89

#81891B

Analogous

#1B4A89

#5A1B89

#231B89

Triadic

#231B89

#89231B

#1B8923

Split Complementary

#231B89

#895A1B

#4A891B

Tetradic

#231B89

#891B4A

#81891B

#1B895A

Color Blindness Simulation

Original

#231B89

Protanopia

#201F6E

Deuteranopia

#202168

Tritanopia

#235955

Achromatopsia

#252525

CSS Usage

background-color: #231B89;
color: #231B89;
border-color: #231B89;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F3FC
100
#E4E3F7
200
#C7C3F3
300
#9F99EB
400
#6B61E0
500
#362AD5
600
#2C22AA
700
#231B88
800
#1B156B
900
#17134E
950
#0F0C31

Contrast Checker

Text on white

13.21:1

AA Pass AAA Pass

Text on black

1.59:1

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