#28373B

#28373B

Color Values

HEX

#28373B

RGB

40, 55, 59

HSL

192.6, 19.2%, 19.4%

HSV

192.6, 32.2%, 23.1%

CMYK

32.2%, 6.8%, 0.0%, 76.9%

OKLCH

0.3252 0.0209 215.9

Properties

Cool Dark Nearest: RAL 5001 Green Blue

Color Harmonies

Complementary

#28373B

#3B2C28

Analogous

#283B35

#282D3B

#28373B

Triadic

#28373B

#3B2837

#373B28

Split Complementary

#28373B

#3B282D

#3B3528

Tetradic

#28373B

#35283B

#3B2C28

#2D3B28

Color Blindness Simulation

Original

#28373B

Protanopia

#2E2F3A

Deuteranopia

#2E2C3A

Tritanopia

#293939

Achromatopsia

#343434

CSS Usage

background-color: #28373B;
color: #28373B;
border-color: #28373B;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F6F8F9
100
#EAEFF0
200
#D4DFE2
300
#B6C9CE
400
#8FABB3
500
#678E98
600
#52717A
700
#425B61
800
#34474C
900
#283539
950
#192224

Contrast Checker

Text on white

12.35:1

AA Pass AAA Pass

Text on black

1.7:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026