#313173

#313173

Color Values

HEX

#313173

RGB

49, 49, 115

HSL

240.0, 40.2%, 32.2%

HSV

240.0, 57.4%, 45.1%

CMYK

57.4%, 57.4%, 0.0%, 54.9%

OKLCH

0.3527 0.1107 279.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#313173

#737331

Analogous

#315273

#523173

#313173

Triadic

#313173

#733131

#317331

Split Complementary

#313173

#735231

#527331

Tetradic

#313173

#733152

#737331

#317352

Color Blindness Simulation

Original

#313173

Protanopia

#313163

Deuteranopia

#31315F

Tritanopia

#315654

Achromatopsia

#363636

CSS Usage

background-color: #313173;
color: #313173;
border-color: #313173;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E7F3
200
#CDCDEA
300
#A9A9DA
400
#7B7BC7
500
#4C4CB3
600
#3D3D8F
700
#313172
800
#262659
900
#1F1F42
950
#14142A

Contrast Checker

Text on white

11.55:1

AA Pass AAA Pass

Text on black

1.82:1

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