#280309

#280309

Color Values

HEX

#280309

RGB

40, 3, 9

HSL

350.3, 86.0%, 8.4%

HSV

350.3, 92.5%, 15.7%

CMYK

0.0%, 92.5%, 77.5%, 84.3%

OKLCH

0.1831 0.0635 14.7

Properties

Warm Dark Nearest: RAL 3007 Black Red

Color Harmonies

Complementary

#280309

#032822

Analogous

#28031B

#280F03

#280309

Triadic

#280309

#092803

#030928

Split Complementary

#280309

#03280F

#031B28

Tetradic

#280309

#1B2803

#032822

#0F0328

Color Blindness Simulation

Original

#280309

Protanopia

#181808

Deuteranopia

#1A1D07

Tritanopia

#260606

Achromatopsia

#0B0B0B

CSS Usage

background-color: #280309;
color: #280309;
border-color: #280309;
Nearest Tailwind: Red 950 #450A0A

Tailwind Shades

50
#FDF2F4
100
#FAE0E4
200
#FABDC7
300
#F68D9E
400
#F2506A
500
#ED1235
600
#BE0E2B
700
#980B22
800
#77091B
900
#560B17
950
#36070F

Contrast Checker

Text on white

18.97:1

AA Pass AAA Pass

Text on black

1.11:1

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