#283551

#283551

Color Values

HEX

#283551

RGB

40, 53, 81

HSL

221.0, 33.9%, 23.7%

HSV

221.0, 50.6%, 31.8%

CMYK

50.6%, 34.6%, 0.0%, 68.2%

OKLCH

0.331 0.0529 264.7

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#283551

#514428

Analogous

#284951

#2F2851

#283551

Triadic

#283551

#512835

#355128

Split Complementary

#283551

#512F28

#495128

Tetradic

#283551

#512849

#514428

#28512F

Color Blindness Simulation

Original

#283551

Protanopia

#2E2E4A

Deuteranopia

#2D2C49

Tritanopia

#294544

Achromatopsia

#343434

CSS Usage

background-color: #283551;
color: #283551;
border-color: #283551;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F5F7FA
100
#E8EBF2
200
#CFD7E7
300
#ADBAD7
400
#8195C1
500
#5470AB
600
#435989
700
#36476D
800
#2A3855
900
#222B3F
950
#151B28

Contrast Checker

Text on white

12.22:1

AA Pass AAA Pass

Text on black

1.72:1

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