#B21517

#B21517

Color Values

HEX

#B21517

RGB

178, 21, 23

HSL

359.2, 78.9%, 39.0%

HSV

359.2, 88.2%, 69.8%

CMYK

0.0%, 88.2%, 87.1%, 30.2%

OKLCH

0.4879 0.1883 27.6

Properties

Warm Dark Nearest: firebrick

Color Harmonies

Complementary

#B21517

#15B2B0

Analogous

#B21566

#B26115

#B21517

Triadic

#B21517

#17B215

#1517B2

Split Complementary

#B21517

#15B261

#1566B2

Tetradic

#B21517

#66B215

#15B2B0

#6115B2

Color Blindness Simulation

Original

#B21517

Protanopia

#6E6D17

Deuteranopia

#778316

Tritanopia

#AA1616

Achromatopsia

#373737

CSS Usage

background-color: #B21517;
color: #B21517;
border-color: #B21517;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FCF2F2
100
#F9E1E1
200
#F7BFC0
300
#F29293
400
#EB5658
500
#E41B1E
600
#B61618
700
#921113
800
#720D0F
900
#530E0F
950
#340909

Contrast Checker

Text on white

6.97:1

AA Pass AAA Fail

Text on black

3.01:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026