#311C3F

#311C3F

Color Values

HEX

#311C3F

RGB

49, 28, 63

HSL

276.0, 38.5%, 17.8%

HSV

276.0, 55.6%, 24.7%

CMYK

22.2%, 55.6%, 0.0%, 75.3%

OKLCH

0.2716 0.0674 310.3

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#311C3F

#2A3F1C

Analogous

#1F1C3F

#3F1C3B

#311C3F

Triadic

#311C3F

#3F311C

#1C3F31

Split Complementary

#311C3F

#3B3F1C

#1C3F1F

Tetradic

#311C3F

#3F1F1C

#2A3F1C

#1C3B3F

Color Blindness Simulation

Original

#311C3F

Protanopia

#282837

Deuteranopia

#292B34

Tritanopia

#30302E

Achromatopsia

#232323

CSS Usage

background-color: #311C3F;
color: #311C3F;
border-color: #311C3F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5FA
100
#EEE7F3
200
#DECEE9
300
#C7AAD9
400
#A87CC5
500
#894EB1
600
#6E3F8D
700
#583271
800
#452758
900
#342041
950
#211429

Contrast Checker

Text on white

15.35:1

AA Pass AAA Pass

Text on black

1.37:1

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