#231F71

#231F71

Color Values

HEX

#231F71

RGB

35, 31, 113

HSL

242.9, 56.9%, 28.2%

HSV

242.9, 72.6%, 44.3%

CMYK

69.0%, 72.6%, 0.0%, 55.7%

OKLCH

0.306 0.1355 276.9

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#231F71

#6D711F

Analogous

#1F4471

#4C1F71

#231F71

Triadic

#231F71

#71231F

#1F7123

Split Complementary

#231F71

#714C1F

#44711F

Tetradic

#231F71

#711F44

#6D711F

#1F714C

Color Blindness Simulation

Original

#231F71

Protanopia

#21215D

Deuteranopia

#222258

Tritanopia

#234D4A

Achromatopsia

#262626

CSS Usage

background-color: #231F71;
color: #231F71;
border-color: #231F71;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E5E5F6
200
#C9C7F0
300
#A29FE5
400
#706BD6
500
#3E37C8
600
#322CA0
700
#282380
800
#1F1B64
900
#1A1849
950
#100F2E

Contrast Checker

Text on white

13.95:1

AA Pass AAA Pass

Text on black

1.51:1

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