#311745

#311745

Color Values

HEX

#311745

RGB

49, 23, 69

HSL

273.9, 50.0%, 18.0%

HSV

273.9, 66.7%, 27.1%

CMYK

29.0%, 66.7%, 0.0%, 72.9%

OKLCH

0.2668 0.0853 307.7

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#311745

#2B4517

Analogous

#1A1745

#451742

#311745

Triadic

#311745

#453117

#174531

Split Complementary

#311745

#424517

#17451A

Tetradic

#311745

#451A17

#2B4517

#174245

Color Blindness Simulation

Original

#311745

Protanopia

#26263A

Deuteranopia

#272937

Tritanopia

#30312F

Achromatopsia

#202020

CSS Usage

background-color: #311745;
color: #311745;
border-color: #311745;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F4FB
100
#EEE6F5
200
#DEC9ED
300
#C6A3E0
400
#A771D0
500
#8840BF
600
#6D3399
700
#57297A
800
#442060
900
#331B46
950
#20112C

Contrast Checker

Text on white

15.68:1

AA Pass AAA Pass

Text on black

1.34:1

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