#B5403F

#B5403F

Color Values

HEX

#B5403F

RGB

181, 64, 63

HSL

0,5, 48,4%, 47,8%

HSV

0,5, 65,2%, 71,0%

CMYK

0,0%, 64,6%, 65,2%, 29,0%

OKLCH

0,5356 0,1523 24,3

Properties

Warm Dark Nearest: NCS S 2060-R Deep Red

Color Harmonies

Complementary

#B5403F

#3FB4B5

Analogous

#B53F79

#B57B3F

#B5403F

Triadic

#B5403F

#3FB540

#403FB5

Split Complementary

#B5403F

#3FB57B

#3F79B5

Tetradic

#B5403F

#79B53F

#3FB4B5

#7B3FB5

Color Blindness Simulation

Original

#B5403F

Protanopia

#82813F

Deuteranopia

#89923F

Tritanopia

#AF3F3F

Achromatopsia

#595959

CSS Usage

background-color: #B5403F;
color: #B5403F;
border-color: #B5403F;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FAF4F4
100
#F4E6E6
200
#EDCACA
300
#DFA5A4
400
#CE7473
500
#BD4342
600
#973535
700
#792B2A
800
#5F2121
900
#461C1B
950
#2C1111

Contrast Checker

Text on white

5,57:1

AA Pass AAA Fail

Text on black

3,77:1

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