#280C43

#280C43

Color Values

HEX

#280C43

RGB

40, 12, 67

HSL

270.5, 69.6%, 15.5%

HSV

270.5, 82.1%, 26.3%

CMYK

40.3%, 82.1%, 0.0%, 73.7%

OKLCH

0.2356 0.0976 302.6

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#280C43

#27430C

Analogous

#0C0C43

#430C43

#280C43

Triadic

#280C43

#43280C

#0C4328

Split Complementary

#280C43

#43430C

#0C430C

Tetradic

#280C43

#430C0C

#27430C

#0C4343

Color Blindness Simulation

Original

#280C43

Protanopia

#1C1C36

Deuteranopia

#1E2032

Tritanopia

#272B29

Achromatopsia

#161616

CSS Usage

background-color: #280C43;
color: #280C43;
border-color: #280C43;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F3FC
100
#EDE3F8
200
#DCC2F4
300
#C397EC
400
#A25FE2
500
#8127D8
600
#671FAD
700
#53198A
800
#40136C
900
#31124F
950
#1F0B32

Contrast Checker

Text on white

17.16:1

AA Pass AAA Pass

Text on black

1.22:1

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