#28503B

#28503B

Color Values

HEX

#28503B

RGB

40, 80, 59

HSL

148.5, 33.3%, 23.5%

HSV

148.5, 50.0%, 31.4%

CMYK

50.0%, 0.0%, 26.2%, 68.6%

OKLCH

0.3952 0.0583 159.2

Properties

Cool Dark Nearest: RAL 6028 Pine Green

Color Harmonies

Complementary

#28503B

#50283D

Analogous

#295028

#28504F

#28503B

Triadic

#28503B

#3B2850

#503B28

Split Complementary

#28503B

#4F2850

#502829

Tetradic

#28503B

#282950

#50283D

#504F28

Color Blindness Simulation

Original

#28503B

Protanopia

#393A40

Deuteranopia

#373441

Tritanopia

#2A4445

Achromatopsia

#464646

CSS Usage

background-color: #28503B;
color: #28503B;
border-color: #28503B;
Nearest Tailwind: Emerald 900 #064E3B

Tailwind Shades

50
#F5FAF7
100
#E8F2ED
200
#CFE7DB
300
#ADD6C1
400
#81C09F
500
#55AA7D
600
#448864
700
#366D50
800
#2B553F
900
#223F30
950
#15281E

Contrast Checker

Text on white

9.13:1

AA Pass AAA Pass

Text on black

2.3:1

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