#31308D

#31308D

Color Values

HEX

#31308D

RGB

49, 48, 141

HSL

240.6, 49.2%, 37.1%

HSV

240.6, 66.0%, 55.3%

CMYK

65.2%, 66.0%, 0.0%, 44.7%

OKLCH

0.3732 0.1495 276.8

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#31308D

#8C8D30

Analogous

#305E8D

#60308D

#31308D

Triadic

#31308D

#8D3130

#308D31

Split Complementary

#31308D

#8D6030

#5E8D30

Tetradic

#31308D

#8D305E

#8C8D30

#308D60

Color Blindness Simulation

Original

#31308D

Protanopia

#313177

Deuteranopia

#313171

Tritanopia

#316561

Achromatopsia

#373737

CSS Usage

background-color: #31308D;
color: #31308D;
border-color: #31308D;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E6E6F5
200
#CACAED
300
#A4A4E0
400
#7372CF
500
#4241BE
600
#353498
700
#2A297A
800
#21205F
900
#1B1B46
950
#11112C

Contrast Checker

Text on white

10.84:1

AA Pass AAA Pass

Text on black

1.94:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026