#313366

#313366

Color Values

HEX

#313366

RGB

49, 51, 102

HSL

237,7, 35,1%, 29,6%

HSV

237,7, 52,0%, 40,0%

CMYK

52,0%, 50,0%, 0,0%, 60,0%

OKLCH

0,3471 0,0875 279,1

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#313366

#666431

Analogous

#314E66

#493166

#313366

Triadic

#313366

#663133

#336631

Split Complementary

#313366

#664931

#4E6631

Tetradic

#313366

#66314E

#666431

#316649

Color Blindness Simulation

Original

#313366

Protanopia

#32325A

Deuteranopia

#323257

Tritanopia

#31504E

Achromatopsia

#363636

CSS Usage

background-color: #313366;
color: #313366;
border-color: #313366;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F5FA
100
#E8E8F2
200
#CFD0E8
300
#ACAED7
400
#8082C2
500
#5356AC
600
#42458A
700
#35376E
800
#292B56
900
#212240
950
#151628

Contrast Checker

Text on white

11,69:1

AA Pass AAA Pass

Text on black

1,8:1

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