#283151

#283151

Color Values

HEX

#283151

RGB

40, 49, 81

HSL

226.8, 33.9%, 23.7%

HSV

226.8, 50.6%, 31.8%

CMYK

50.6%, 39.5%, 0.0%, 68.2%

OKLCH

0.3211 0.0585 270.9

Properties

Cool Dark Nearest: RAL 5010 Gentian Blue

Color Harmonies

Complementary

#283151

#514828

Analogous

#284551

#332851

#283151

Triadic

#283151

#512831

#315128

Split Complementary

#283151

#513328

#455128

Tetradic

#283151

#512845

#514828

#285133

Color Blindness Simulation

Original

#283151

Protanopia

#2C2C49

Deuteranopia

#2B2B47

Tritanopia

#284342

Achromatopsia

#313131

CSS Usage

background-color: #283151;
color: #283151;
border-color: #283151;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F5F6FA
100
#E8EAF2
200
#CFD5E7
300
#ADB6D7
400
#818FC1
500
#5467AB
600
#435389
700
#36426D
800
#2A3455
900
#22283F
950
#151928

Contrast Checker

Text on white

12.74:1

AA Pass AAA Pass

Text on black

1.65:1

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