#231F59

#231F59

Color Values

HEX

#231F59

RGB

35, 31, 89

HSL

244.1, 48.3%, 23.5%

HSV

244.1, 65.2%, 34.9%

CMYK

60.7%, 65.2%, 0.0%, 65.1%

OKLCH

0.2826 0.1008 280.9

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#231F59

#55591F

Analogous

#1F3859

#401F59

#231F59

Triadic

#231F59

#59231F

#1F5923

Split Complementary

#231F59

#59401F

#38591F

Tetradic

#231F59

#591F38

#55591F

#1F5940

Color Blindness Simulation

Original

#231F59

Protanopia

#21214B

Deuteranopia

#222248

Tritanopia

#23403D

Achromatopsia

#242424

CSS Usage

background-color: #231F59;
color: #231F59;
border-color: #231F59;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F4FA
100
#E7E6F4
200
#CCCAED
300
#A8A4DF
400
#7973CE
500
#4A42BD
600
#3B3597
700
#302A79
800
#25215F
900
#1E1B46
950
#13112C

Contrast Checker

Text on white

14.88:1

AA Pass AAA Pass

Text on black

1.41:1

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