#28403C

#28403C

Color Values

HEX

#28403C

RGB

40, 64, 60

HSL

170.0, 23.1%, 20.4%

HSV

170.0, 37.5%, 25.1%

CMYK

37.5%, 0.0%, 6.2%, 74.9%

OKLCH

0.3504 0.0307 182.9

Properties

Cool Dark Nearest: RAL 6036 Pearl Opal Green

Color Harmonies

Complementary

#28403C

#40282C

Analogous

#284030

#283840

#28403C

Triadic

#28403C

#3C2840

#403C28

Split Complementary

#28403C

#402838

#403028

Tetradic

#28403C

#302840

#40282C

#384028

Color Blindness Simulation

Original

#28403C

Protanopia

#32333D

Deuteranopia

#312F3D

Tritanopia

#293E3E

Achromatopsia

#3B3B3B

CSS Usage

background-color: #28403C;
color: #28403C;
border-color: #28403C;
Nearest Tailwind: Teal 950 #042F2E

Tailwind Shades

50
#F6F9F8
100
#EAF1EF
200
#D3E4E1
300
#B4D0CB
400
#8BB6AF
500
#629D93
600
#4E7E76
700
#3F645E
800
#314E4A
900
#263B37
950
#182523

Contrast Checker

Text on white

11.12:1

AA Pass AAA Pass

Text on black

1.89:1

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