#A3312F

#A3312F

Color Values

HEX

#A3312F

RGB

163, 49, 47

HSL

1.0, 55.2%, 41.2%

HSV

1.0, 71.2%, 63.9%

CMYK

0.0%, 69.9%, 71.2%, 36.1%

OKLCH

0.485 0.1503 25.6

Properties

Warm Dark Nearest: NCS S 2060-R Deep Red

Color Harmonies

Complementary

#A3312F

#2FA1A3

Analogous

#A32F67

#A36B2F

#A3312F

Triadic

#A3312F

#2FA331

#312FA3

Split Complementary

#A3312F

#2FA36B

#2F67A3

Tetradic

#A3312F

#67A32F

#2FA1A3

#6B2FA3

Color Blindness Simulation

Original

#A3312F

Protanopia

#72712F

Deuteranopia

#788130

Tritanopia

#9D3030

Achromatopsia

#494949

CSS Usage

background-color: #A3312F;
color: #A3312F;
border-color: #A3312F;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FBF4F4
100
#F6E5E5
200
#EFC8C8
300
#E4A1A0
400
#D56E6D
500
#C63B39
600
#9E302E
700
#7F2625
800
#631E1D
900
#491918
950
#2E100F

Contrast Checker

Text on white

6.91:1

AA Pass AAA Fail

Text on black

3.04:1

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