#B71011

#B71011

Color Values

HEX

#B71011

RGB

183, 16, 17

HSL

359.6, 83.9%, 39.0%

HSV

359.6, 91.3%, 71.8%

CMYK

0.0%, 91.3%, 90.7%, 28.2%

OKLCH

0.495 0.1952 28.2

Properties

Warm Dark Nearest: RAL 2002 Vermilion

Color Harmonies

Complementary

#B71011

#10B7B6

Analogous

#B71065

#B76210

#B71011

Triadic

#B71011

#11B710

#1011B7

Split Complementary

#B71011

#10B762

#1065B7

Tetradic

#B71011

#65B710

#10B7B6

#6210B7

Color Blindness Simulation

Original

#B71011

Protanopia

#6F6D11

Deuteranopia

#788511

Tritanopia

#AF1111

Achromatopsia

#343434

CSS Usage

background-color: #B71011;
color: #B71011;
border-color: #B71011;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FDF2F2
100
#FAE0E1
200
#F9BDBE
300
#F58E8F
400
#F05153
500
#EA1516
600
#BC1012
700
#960D0E
800
#750A0B
900
#550C0C
950
#360708

Contrast Checker

Text on white

6.78:1

AA Pass AAA Fail

Text on black

3.1:1

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