#303457

#303457

Color Values

HEX

#303457

RGB

48, 52, 87

HSL

233,8, 28,9%, 26,5%

HSV

233,8, 44,8%, 34,1%

CMYK

44,8%, 40,2%, 0,0%, 65,9%

OKLCH

0,3386 0,0615 277,6

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#303457

#575330

Analogous

#304857

#403057

#303457

Triadic

#303457

#573034

#345730

Split Complementary

#303457

#574030

#485730

Tetradic

#303457

#573048

#575330

#305740

Color Blindness Simulation

Original

#303457

Protanopia

#32324F

Deuteranopia

#32314C

Tritanopia

#304846

Achromatopsia

#363636

CSS Usage

background-color: #303457;
color: #303457;
border-color: #303457;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F6F9
100
#E9EAF2
200
#D1D3E6
300
#B0B4D3
400
#858BBC
500
#5B62A4
600
#494F83
700
#3A3F69
800
#2D3152
900
#24263D
950
#171827

Contrast Checker

Text on white

11,97:1

AA Pass AAA Pass

Text on black

1,75:1

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