#284971

#284971

Color Values

HEX

#284971

RGB

40, 73, 113

HSL

212.9, 47.7%, 30.0%

HSV

212.9, 64.6%, 44.3%

CMYK

64.6%, 35.4%, 0.0%, 55.7%

OKLCH

0.4003 0.0783 254.3

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#284971

#715028

Analogous

#286D71

#2C2871

#284971

Triadic

#284971

#712849

#497128

Split Complementary

#284971

#712C28

#6D7128

Tetradic

#284971

#71286D

#715028

#28712C

Color Blindness Simulation

Original

#284971

Protanopia

#363767

Deuteranopia

#343265

Tritanopia

#2A605E

Achromatopsia

#454545

CSS Usage

background-color: #284971;
color: #284971;
border-color: #284971;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F4F7FA
100
#E6ECF4
200
#CADAEC
300
#A5BFDF
400
#749CCE
500
#437ABC
600
#356197
700
#2B4E79
800
#213D5E
900
#1C2E45
950
#111D2C

Contrast Checker

Text on white

9.2:1

AA Pass AAA Pass

Text on black

2.28:1

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