#283F65

#283F65

Color Values

HEX

#283F65

RGB

40, 63, 101

HSL

217.4, 43.3%, 27.6%

HSV

217.4, 60.4%, 39.6%

CMYK

60.4%, 37.6%, 0.0%, 60.4%

OKLCH

0.3681 0.072 260.0

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#283F65

#654E28

Analogous

#285D65

#2F2865

#283F65

Triadic

#283F65

#65283F

#3F6528

Split Complementary

#283F65

#652F28

#5D6528

Tetradic

#283F65

#65285D

#654E28

#28652F

Color Blindness Simulation

Original

#283F65

Protanopia

#32325C

Deuteranopia

#312F5A

Tritanopia

#295553

Achromatopsia

#3D3D3D

CSS Usage

background-color: #283F65;
color: #283F65;
border-color: #283F65;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F5F7FA
100
#E7ECF4
200
#CCD7EB
300
#A7BBDC
400
#7897CA
500
#4872B7
600
#3A5B92
700
#2E4975
800
#24395B
900
#1E2C43
950
#131C2B

Contrast Checker

Text on white

10.56:1

AA Pass AAA Pass

Text on black

1.99:1

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