#284D8B

#284D8B

Color Values

HEX

#284D8B

RGB

40, 77, 139

HSL

217.6, 55.3%, 35.1%

HSV

217.6, 71.2%, 54.5%

CMYK

71.2%, 44.6%, 0.0%, 45.5%

OKLCH

0.4267 0.1115 260.1

Properties

Cool Dark Nearest: dodgerblue 4

Color Harmonies

Complementary

#284D8B

#8B6628

Analogous

#287E8B

#35288B

#284D8B

Triadic

#284D8B

#8B284D

#4D8B28

Split Complementary

#284D8B

#8B3528

#7E8B28

Tetradic

#284D8B

#8B287E

#8B6628

#288B35

Color Blindness Simulation

Original

#284D8B

Protanopia

#38387C

Deuteranopia

#363378

Tritanopia

#2A706E

Achromatopsia

#4A4A4A

CSS Usage

background-color: #284D8B;
color: #284D8B;
border-color: #284D8B;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F6FB
100
#E5EBF6
200
#C8D6EF
300
#A0B9E4
400
#6C93D5
500
#396EC6
600
#2E589E
700
#24467F
800
#1C3763
900
#182A49
950
#0F1B2E

Contrast Checker

Text on white

8.32:1

AA Pass AAA Pass

Text on black

2.52:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026