#28112D

#28112D

Color Values

HEX

#28112D

RGB

40, 17, 45

HSL

289.3, 45.2%, 12.2%

HSV

289.3, 62.2%, 17.6%

CMYK

11.1%, 62.2%, 0.0%, 82.4%

OKLCH

0.2257 0.0603 320.2

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#28112D

#162D11

Analogous

#1A112D

#2D1124

#28112D

Triadic

#28112D

#2D2811

#112D28

Split Complementary

#28112D

#242D11

#112D1A

Tetradic

#28112D

#2D1A11

#162D11

#11242D

Color Blindness Simulation

Original

#28112D

Protanopia

#1E1E26

Deuteranopia

#1F2125

Tritanopia

#272120

Achromatopsia

#181818

CSS Usage

background-color: #28112D;
color: #28112D;
border-color: #28112D;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F9F4FA
100
#F2E6F4
200
#E6CBEB
300
#D4A6DD
400
#BC76CB
500
#A546B9
600
#843894
700
#692D76
800
#52235D
900
#3D1D44
950
#27122B

Contrast Checker

Text on white

17.38:1

AA Pass AAA Pass

Text on black

1.21:1

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