#231B66

#231B66

Color Values

HEX

#231B66

RGB

35, 27, 102

HSL

246.4, 58.1%, 25.3%

HSV

246.4, 73.5%, 40.0%

CMYK

65.7%, 73.5%, 0.0%, 60.0%

OKLCH

0.2879 0.1252 279.9

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#231B66

#5E661B

Analogous

#1B3966

#491B66

#231B66

Triadic

#231B66

#66231B

#1B6623

Split Complementary

#231B66

#66491B

#39661B

Tetradic

#231B66

#661B39

#5E661B

#1B6649

Color Blindness Simulation

Original

#231B66

Protanopia

#201F54

Deuteranopia

#20214F

Tritanopia

#234642

Achromatopsia

#222222

CSS Usage

background-color: #231B66;
color: #231B66;
border-color: #231B66;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F4F4FB
100
#E6E4F6
200
#CBC7F0
300
#A69EE5
400
#766AD7
500
#4535CA
600
#372BA1
700
#2C2281
800
#231B65
900
#1D174A
950
#120F2F

Contrast Checker

Text on white

14.79:1

AA Pass AAA Pass

Text on black

1.42:1

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