#231D4D

#231D4D

Color Values

HEX

#231D4D

RGB

35, 29, 77

HSL

247.5, 45.3%, 20.8%

HSV

247.5, 62.3%, 30.2%

CMYK

54.5%, 62.3%, 0.0%, 69.8%

OKLCH

0.268 0.0853 284.8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#231D4D

#474D1D

Analogous

#1D2F4D

#3B1D4D

#231D4D

Triadic

#231D4D

#4D231D

#1D4D23

Split Complementary

#231D4D

#4D3B1D

#2F4D1D

Tetradic

#231D4D

#4D1D2F

#474D1D

#1D4D3B

Color Blindness Simulation

Original

#231D4D

Protanopia

#202041

Deuteranopia

#21213F

Tritanopia

#233836

Achromatopsia

#222222

CSS Usage

background-color: #231D4D;
color: #231D4D;
border-color: #231D4D;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F4FA
100
#E8E6F4
200
#CFCBEB
300
#ADA6DE
400
#8176CB
500
#5446B9
600
#433894
700
#362D77
800
#2A235D
900
#221D44
950
#15122B

Contrast Checker

Text on white

15.51:1

AA Pass AAA Pass

Text on black

1.35:1

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