#284239

#284239

Color Values

HEX

#284239

RGB

40, 66, 57

HSL

159.2, 24.5%, 20.8%

HSV

159.2, 39.4%, 25.9%

CMYK

39.4%, 0.0%, 13.6%, 74.1%

OKLCH

0.3549 0.0358 170.4

Properties

Cool Dark Nearest: RAL 6005 Moss Green

Color Harmonies

Complementary

#284239

#422831

Analogous

#28422C

#283E42

#284239

Triadic

#284239

#392842

#423928

Split Complementary

#284239

#42283E

#422C28

Tetradic

#284239

#2C2842

#422831

#3E4228

Color Blindness Simulation

Original

#284239

Protanopia

#33333B

Deuteranopia

#32303C

Tritanopia

#293D3D

Achromatopsia

#3C3C3C

CSS Usage

background-color: #284239;
color: #284239;
border-color: #284239;
Nearest Tailwind: Teal 900 #134E4A

Tailwind Shades

50
#F6F9F8
100
#E9F1EE
200
#D3E4DE
300
#B3D1C6
400
#8AB8A8
500
#609F89
600
#4D7F6E
700
#3E6658
800
#304F45
900
#263B34
950
#182521

Contrast Checker

Text on white

10.89:1

AA Pass AAA Pass

Text on black

1.93:1

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