#C7181E

#C7181E

Color Values

HEX

#C7181E

RGB

199, 24, 30

HSL

357.9, 78.5%, 43.7%

HSV

357.9, 87.9%, 78.0%

CMYK

0.0%, 87.9%, 84.9%, 22.0%

OKLCH

0.53 0.2047 26.9

Properties

Warm Dark Nearest: firebrick 3

Color Harmonies

Complementary

#C7181E

#18C7C1

Analogous

#C71876

#C76918

#C7181E

Triadic

#C7181E

#1EC718

#181EC7

Split Complementary

#C7181E

#18C769

#1876C7

Tetradic

#C7181E

#76C718

#18C7C1

#6918C7

Color Blindness Simulation

Original

#C7181E

Protanopia

#7B7A1D

Deuteranopia

#85921C

Tritanopia

#BE1B1B

Achromatopsia

#3E3E3E

CSS Usage

background-color: #C7181E;
color: #C7181E;
border-color: #C7181E;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FCF2F3
100
#F9E1E2
200
#F7BFC1
300
#F29295
400
#EB575C
500
#E41B22
600
#B6161C
700
#921216
800
#720E11
900
#530E11
950
#34090A

Contrast Checker

Text on white

5.87:1

AA Pass AAA Fail

Text on black

3.58:1

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