#01428C

#01428C

Color Values

HEX

#01428C

RGB

1, 66, 140

HSL

211.9, 98.6%, 27.6%

HSV

211.9, 99.3%, 54.9%

CMYK

99.3%, 52.9%, 0.0%, 45.1%

OKLCH

0.3909 0.1364 256.8

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#01428C

#8C4B01

Analogous

#01878C

#05018C

#01428C

Triadic

#01428C

#8C0142

#428C01

Split Complementary

#01428C

#8C0501

#878C01

Tetradic

#01428C

#8C0187

#8C4B01

#018C05

Color Blindness Simulation

Original

#01428C

Protanopia

#1D1E7A

Deuteranopia

#191476

Tritanopia

#046C69

Achromatopsia

#3A3A3A

CSS Usage

background-color: #01428C;
color: #01428C;
border-color: #01428C;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F1F7FE
100
#DEECFC
200
#B8D9FF
300
#85BEFE
400
#449BFE
500
#0278FD
600
#0160CB
700
#014DA2
800
#013C7F
900
#052E5B
950
#031D3A

Contrast Checker

Text on white

9.73:1

AA Pass AAA Pass

Text on black

2.16:1

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