#428563

#428563

Color Values

HEX

#428563

RGB

66, 133, 99

HSL

149.6, 33.7%, 39.0%

HSV

149.6, 50.4%, 52.2%

CMYK

50.4%, 0.0%, 25.6%, 47.8%

OKLCH

0.5627 0.0874 159.6

Properties

Cool Light Nearest: aquamarine 4

Color Harmonies

Complementary

#428563

#854264

Analogous

#428542

#428585

#428563

Triadic

#428563

#634285

#856342

Split Complementary

#428563

#854285

#854242

Tetradic

#428563

#424285

#854264

#858542

Color Blindness Simulation

Original

#428563

Protanopia

#5F606B

Deuteranopia

#5B566D

Tritanopia

#457273

Achromatopsia

#747474

CSS Usage

background-color: #428563;
color: #428563;
border-color: #428563;
Nearest Tailwind: Emerald 700 #047857

Tailwind Shades

50
#F5FAF7
100
#E8F2ED
200
#CFE7DB
300
#ADD6C2
400
#81C0A0
500
#55AA7F
600
#448866
700
#366D51
800
#2A553F
900
#223F30
950
#15281E

Contrast Checker

Text on white

4.41:1

AA Fail AAA Fail

Text on black

4.77:1

AA Pass 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