#280637

#280637

Color Values

HEX

#280637

RGB

40, 6, 55

HSL

281.6, 80.3%, 12.0%

HSV

281.6, 89.1%, 21.6%

CMYK

27.3%, 89.1%, 0.0%, 78.4%

OKLCH

0.2166 0.0921 313.0

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#280637

#153706

Analogous

#100637

#37062E

#280637

Triadic

#280637

#372806

#063728

Split Complementary

#280637

#2E3706

#063710

Tetradic

#280637

#371006

#153706

#062E37

Color Blindness Simulation

Original

#280637

Protanopia

#19192B

Deuteranopia

#1B1E28

Tritanopia

#262220

Achromatopsia

#111111

CSS Usage

background-color: #280637;
color: #280637;
border-color: #280637;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F9F2FD
100
#F2E1F9
200
#E6BFF8
300
#D591F3
400
#BE55EC
500
#A719E6
600
#8614B8
700
#6B1093
800
#540D73
900
#3E0D53
950
#270835

Contrast Checker

Text on white

17.93:1

AA Pass AAA Pass

Text on black

1.17:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026