#3131AB

#3131AB

Color Values

HEX

#3131AB

RGB

49, 49, 171

HSL

240.0, 55.5%, 43.1%

HSV

240.0, 71.3%, 67.1%

CMYK

71.3%, 71.3%, 0.0%, 32.9%

OKLCH

0.4038 0.1879 274.0

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#3131AB

#ABAB31

Analogous

#316EAB

#6E31AB

#3131AB

Triadic

#3131AB

#AB3131

#31AB31

Split Complementary

#3131AB

#AB6E31

#6EAB31

Tetradic

#3131AB

#AB316E

#ABAB31

#31AB6E

Color Blindness Simulation

Original

#3131AB

Protanopia

#31318E

Deuteranopia

#313186

Tritanopia

#317671

Achromatopsia

#3A3A3A

CSS Usage

background-color: #3131AB;
color: #3131AB;
border-color: #3131AB;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E5E5F6
200
#C7C7EF
300
#A0A0E4
400
#6C6CD5
500
#3939C6
600
#2D2D9F
700
#24247F
800
#1C1C63
900
#181849
950
#0F0F2E

Contrast Checker

Text on white

9.73:1

AA Pass AAA Pass

Text on black

2.16:1

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