#312F84

#312F84

Color Values

HEX

#312F84

RGB

49, 47, 132

HSL

241.4, 47.5%, 35.1%

HSV

241.4, 64.4%, 51.8%

CMYK

62.9%, 64.4%, 0.0%, 48.2%

OKLCH

0.3633 0.1383 278.0

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#312F84

#82842F

Analogous

#2F5884

#5B2F84

#312F84

Triadic

#312F84

#84312F

#2F8431

Split Complementary

#312F84

#845B2F

#58842F

Tetradic

#312F84

#842F58

#82842F

#2F845B

Color Blindness Simulation

Original

#312F84

Protanopia

#30306F

Deuteranopia

#30306A

Tritanopia

#315F5C

Achromatopsia

#363636

CSS Usage

background-color: #312F84;
color: #312F84;
border-color: #312F84;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CBCAEC
300
#A6A5DF
400
#7674CD
500
#4643BC
600
#383696
700
#2D2B78
800
#23215E
900
#1D1C45
950
#12122C

Contrast Checker

Text on white

11.23:1

AA Pass AAA Pass

Text on black

1.87:1

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