#280103

#280103

Color Values

HEX

#280103

RGB

40, 1, 3

HSL

356.9, 95.1%, 8.0%

HSV

356.9, 97.5%, 15.7%

CMYK

0.0%, 97.5%, 92.5%, 84.3%

OKLCH

0.177 0.0682 23.5

Properties

Warm Dark Nearest: RAL 3007 Black Red

Color Harmonies

Complementary

#280103

#012826

Analogous

#280116

#281201

#280103

Triadic

#280103

#032801

#010328

Split Complementary

#280103

#012812

#011628

Tetradic

#280103

#162801

#012826

#120128

Color Blindness Simulation

Original

#280103

Protanopia

#171703

Deuteranopia

#191C02

Tritanopia

#260202

Achromatopsia

#090909

CSS Usage

background-color: #280103;
color: #280103;
border-color: #280103;
Nearest Tailwind: Red 950 #450A0A

Tailwind Shades

50
#FEF1F2
100
#FCDFE0
200
#FDB9BD
300
#FC888E
400
#FA4750
500
#F90613
600
#C7050F
700
#9F040C
800
#7C0309
900
#5A070B
950
#390407

Contrast Checker

Text on white

19.16:1

AA Pass AAA Pass

Text on black

1.1:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026