#312F64

#312F64

Color Values

HEX

#312F64

RGB

49, 47, 100

HSL

242.3, 36.1%, 28.8%

HSV

242.3, 53.0%, 39.2%

CMYK

51.0%, 53.0%, 0.0%, 60.8%

OKLCH

0.337 0.0906 282.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#312F64

#62642F

Analogous

#2F4764

#4B2F64

#312F64

Triadic

#312F64

#64312F

#2F6431

Split Complementary

#312F64

#644B2F

#47642F

Tetradic

#312F64

#642F47

#62642F

#2F644B

Color Blindness Simulation

Original

#312F64

Protanopia

#303057

Deuteranopia

#303054

Tritanopia

#314D4B

Achromatopsia

#333333

CSS Usage

background-color: #312F64;
color: #312F64;
border-color: #312F64;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F5FA
100
#E8E8F3
200
#CFCEE8
300
#ADACD8
400
#817FC3
500
#5551AE
600
#44418B
700
#36346F
800
#2B2957
900
#222140
950
#151529

Contrast Checker

Text on white

12.2:1

AA Pass AAA Pass

Text on black

1.72:1

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