#231C56

#231C56

Color Values

HEX

#231C56

RGB

35, 28, 86

HSL

247.2, 50.9%, 22.4%

HSV

247.2, 67.4%, 33.7%

CMYK

59.3%, 67.4%, 0.0%, 66.3%

OKLCH

0.274 0.1007 283.0

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#231C56

#4F561C

Analogous

#1C3256

#401C56

#231C56

Triadic

#231C56

#56231C

#1C5623

Split Complementary

#231C56

#56401C

#32561C

Tetradic

#231C56

#561C32

#4F561C

#1C5640

Color Blindness Simulation

Original

#231C56

Protanopia

#202048

Deuteranopia

#202145

Tritanopia

#233D3A

Achromatopsia

#222222

CSS Usage

background-color: #231C56;
color: #231C56;
border-color: #231C56;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F4FB
100
#E7E5F5
200
#CDC9ED
300
#AAA3E1
400
#7C71D1
500
#4E3FC0
600
#3F329A
700
#32287B
800
#271F60
900
#201A47
950
#14112D

Contrast Checker

Text on white

15.31:1

AA Pass AAA Pass

Text on black

1.37:1

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