#EF1F21

#EF1F21

Color Values

HEX

#EF1F21

RGB

239, 31, 33

HSL

359.4, 86.7%, 52.9%

HSV

359.4, 87.0%, 93.7%

CMYK

0.0%, 87.0%, 86.2%, 6.3%

OKLCH

0.6078 0.2354 27.7

Properties

Warm Light Nearest: firebrick 1

Color Harmonies

Complementary

#EF1F21

#1FEFED

Analogous

#EF1F89

#EF851F

#EF1F21

Triadic

#EF1F21

#21EF1F

#1F21EF

Split Complementary

#EF1F21

#1FEF85

#1F89EF

Tetradic

#EF1F21

#89EF1F

#1FEFED

#851FEF

Color Blindness Simulation

Original

#EF1F21

Protanopia

#959321

Deuteranopia

#A1B120

Tritanopia

#E52020

Achromatopsia

#4B4B4B

CSS Usage

background-color: #EF1F21;
color: #EF1F21;
border-color: #EF1F21;
Nearest Tailwind: Red 600 #DC2626

Tailwind Shades

50
#FDF2F2
100
#FAE0E0
200
#FABCBD
300
#F78D8E
400
#F24F50
500
#EE1113
600
#BE0E0F
700
#980B0C
800
#77080A
900
#560B0B
950
#360707

Contrast Checker

Text on white

4.3:1

AA Fail AAA Fail

Text on black

4.89:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026