#821313

#821313

Color Values

HEX

#821313

RGB

130, 19, 19

HSL

0.0, 74.5%, 29.2%

HSV

0.0, 85.4%, 51.0%

CMYK

0.0%, 85.4%, 85.4%, 49.0%

OKLCH

0.3922 0.1452 27.2

Properties

Warm Dark Nearest: firebrick 4

Color Harmonies

Complementary

#821313

#138282

Analogous

#82134A

#824A13

#821313

Triadic

#821313

#138213

#131382

Split Complementary

#821313

#13824A

#134A82

Tetradic

#821313

#4A8213

#138282

#4A1382

Color Blindness Simulation

Original

#821313

Protanopia

#525113

Deuteranopia

#586113

Tritanopia

#7C1313

Achromatopsia

#2B2B2B

CSS Usage

background-color: #821313;
color: #821313;
border-color: #821313;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FCF3F3
100
#F8E2E2
200
#F6C1C1
300
#EF9494
400
#E75A5A
500
#DE2121
600
#B21A1A
700
#8E1515
800
#6F1010
900
#511010
950
#330A0A

Contrast Checker

Text on white

10.24:1

AA Pass AAA Pass

Text on black

2.05:1

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