#31317D

#31317D

Color Values

HEX

#31317D

RGB

49, 49, 125

HSL

240.0, 43.7%, 34.1%

HSV

240.0, 60.8%, 49.0%

CMYK

60.8%, 60.8%, 0.0%, 51.0%

OKLCH

0.3609 0.1256 278.1

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#31317D

#7D7D31

Analogous

#31577D

#57317D

#31317D

Triadic

#31317D

#7D3131

#317D31

Split Complementary

#31317D

#7D5731

#577D31

Tetradic

#31317D

#7D3157

#7D7D31

#317D57

Color Blindness Simulation

Original

#31317D

Protanopia

#31316B

Deuteranopia

#313166

Tritanopia

#315C59

Achromatopsia

#363636

CSS Usage

background-color: #31317D;
color: #31317D;
border-color: #31317D;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CCCCEB
300
#A7A7DD
400
#7777CA
500
#4848B7
600
#393993
700
#2E2E75
800
#24245C
900
#1D1D44
950
#13132B

Contrast Checker

Text on white

11.25:1

AA Pass AAA Pass

Text on black

1.87:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026