#31319B

#31319B

Color Values

HEX

#31319B

RGB

49, 49, 155

HSL

240.0, 52.0%, 40.0%

HSV

240.0, 68.4%, 60.8%

CMYK

68.4%, 68.4%, 0.0%, 39.2%

OKLCH

0.3881 0.1672 275.3

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#31319B

#9B9B31

Analogous

#31669B

#66319B

#31319B

Triadic

#31319B

#9B3131

#319B31

Split Complementary

#31319B

#9B6631

#669B31

Tetradic

#31319B

#9B3166

#9B9B31

#319B66

Color Blindness Simulation

Original

#31319B

Protanopia

#313181

Deuteranopia

#31317B

Tritanopia

#316D69

Achromatopsia

#393939

CSS Usage

background-color: #31319B;
color: #31319B;
border-color: #31319B;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E5E5F5
200
#C9C9EE
300
#A2A2E2
400
#7070D2
500
#3D3DC2
600
#31319B
700
#27277C
800
#1F1F61
900
#1A1A47
950
#10102D

Contrast Checker

Text on white

10.28:1

AA Pass AAA Pass

Text on black

2.04:1

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