#283E65

#283E65

Color Values

HEX

#283E65

RGB

40, 62, 101

HSL

218.4, 43.3%, 27.6%

HSV

218.4, 60.4%, 39.6%

CMYK

60.4%, 38.6%, 0.0%, 60.4%

OKLCH

0.3657 0.0732 261.2

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#283E65

#654F28

Analogous

#285C65

#302865

#283E65

Triadic

#283E65

#65283E

#3E6528

Split Complementary

#283E65

#653028

#5C6528

Tetradic

#283E65

#65285C

#654F28

#286530

Color Blindness Simulation

Original

#283E65

Protanopia

#32325C

Deuteranopia

#302F59

Tritanopia

#295452

Achromatopsia

#3C3C3C

CSS Usage

background-color: #283E65;
color: #283E65;
border-color: #283E65;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F5F7FA
100
#E7EBF4
200
#CCD7EB
300
#A7BADC
400
#7895CA
500
#4870B7
600
#3A5A92
700
#2E4875
800
#24385B
900
#1E2B43
950
#131B2B

Contrast Checker

Text on white

10.68:1

AA Pass AAA Pass

Text on black

1.97:1

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