#131237

#131237

Color Values

HEX

#131237

RGB

19, 18, 55

HSL

241.6, 50.7%, 14.3%

HSV

241.6, 67.3%, 21.6%

CMYK

65.5%, 67.3%, 0.0%, 78.4%

OKLCH

0.2094 0.0701 279.7

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#131237

#363712

Analogous

#122337

#251237

#131237

Triadic

#131237

#371312

#123713

Split Complementary

#131237

#372512

#233712

Tetradic

#131237

#371223

#363712

#123725

Color Blindness Simulation

Original

#131237

Protanopia

#13132E

Deuteranopia

#13132C

Tritanopia

#132725

Achromatopsia

#151515

CSS Usage

background-color: #131237;
color: #131237;
border-color: #131237;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E6E5F5
200
#CAC9ED
300
#A4A3E1
400
#7371D0
500
#423FC0
600
#35329A
700
#2A287B
800
#211F60
900
#1C1A47
950
#11112D

Contrast Checker

Text on white

17.96:1

AA Pass AAA Pass

Text on black

1.17:1

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