#28232F

#28232F

Color Values

HEX

#28232F

RGB

40, 35, 47

HSL

265.0, 14.6%, 16.1%

HSV

265.0, 25.5%, 18.4%

CMYK

14.9%, 25.5%, 0.0%, 81.6%

OKLCH

0.2669 0.0231 303.8

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#28232F

#2A2F23

Analogous

#23242F

#2E232F

#28232F

Triadic

#28232F

#2F2823

#232F28

Split Complementary

#28232F

#2F2E23

#242F23

Tetradic

#28232F

#2F2324

#2A2F23

#232F2E

Color Blindness Simulation

Original

#28232F

Protanopia

#26262C

Deuteranopia

#26262B

Tritanopia

#282A29

Achromatopsia

#252525

CSS Usage

background-color: #28232F;
color: #28232F;
border-color: #28232F;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F7F6F8
100
#EDEBEF
200
#DAD6E1
300
#C0B9CB
400
#9E93AE
500
#7C6D92
600
#645775
700
#50465E
800
#3E3649
900
#2F2A37
950
#1E1B23

Contrast Checker

Text on white

15.31:1

AA Pass AAA Pass

Text on black

1.37:1

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