#A33638

#A33638

Color Values

HEX

#A33638

RGB

163, 54, 56

HSL

358.9, 50.2%, 42.5%

HSV

358.9, 66.9%, 63.9%

CMYK

0.0%, 66.9%, 65.6%, 36.1%

OKLCH

0.4923 0.144 23.1

Properties

Warm Dark Nearest: NCS S 2060-R Deep Red

Color Harmonies

Complementary

#A33638

#36A3A1

Analogous

#A3366E

#A36A36

#A33638

Triadic

#A33638

#38A336

#3638A3

Split Complementary

#A33638

#36A36A

#366EA3

Tetradic

#A33638

#6EA336

#36A3A1

#6A36A3

Color Blindness Simulation

Original

#A33638

Protanopia

#747338

Deuteranopia

#7A8237

Tritanopia

#9E3737

Achromatopsia

#4D4D4D

CSS Usage

background-color: #A33638;
color: #A33638;
border-color: #A33638;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FBF4F4
100
#F5E6E6
200
#EDC9CA
300
#E1A3A4
400
#D07173
500
#C03F42
600
#993335
700
#7B292A
800
#602021
900
#461B1B
950
#2C1111

Contrast Checker

Text on white

6.68:1

AA Pass AAA Fail

Text on black

3.14:1

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