#A43738

#A43738

Color Values

HEX

#A43738

RGB

164, 55, 56

HSL

359.4, 49.8%, 42.9%

HSV

359.4, 66.5%, 64.3%

CMYK

0.0%, 66.5%, 65.9%, 35.7%

OKLCH

0.4952 0.144 23.5

Properties

Warm Dark Nearest: NCS S 2060-R Deep Red

Color Harmonies

Complementary

#A43738

#37A4A3

Analogous

#A4376E

#A46C37

#A43738

Triadic

#A43738

#38A437

#3738A4

Split Complementary

#A43738

#37A46C

#376EA4

Tetradic

#A43738

#6EA437

#37A4A3

#6C37A4

Color Blindness Simulation

Original

#A43738

Protanopia

#757438

Deuteranopia

#7B8338

Tritanopia

#9F3838

Achromatopsia

#4E4E4E

CSS Usage

background-color: #A43738;
color: #A43738;
border-color: #A43738;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FBF4F4
100
#F5E6E6
200
#EDCACA
300
#E0A3A4
400
#D07273
500
#BF4041
600
#993334
700
#7A292A
800
#5F2021
900
#461B1B
950
#2C1111

Contrast Checker

Text on white

6.6:1

AA Pass AAA Fail

Text on black

3.18:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026