#280C3C

#280C3C

Color Values

HEX

#280C3C

RGB

40, 12, 60

HSL

275.0, 66.7%, 14.1%

HSV

275.0, 80.0%, 23.5%

CMYK

33.3%, 80.0%, 0.0%, 76.5%

OKLCH

0.2292 0.0888 307.5

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#280C3C

#203C0C

Analogous

#100C3C

#3C0C38

#280C3C

Triadic

#280C3C

#3C280C

#0C3C28

Split Complementary

#280C3C

#383C0C

#0C3C10

Tetradic

#280C3C

#3C100C

#203C0C

#0C383C

Color Blindness Simulation

Original

#280C3C

Protanopia

#1C1C30

Deuteranopia

#1E202E

Tritanopia

#272725

Achromatopsia

#151515

CSS Usage

background-color: #280C3C;
color: #280C3C;
border-color: #280C3C;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F3FC
100
#EFE3F7
200
#DFC3F3
300
#C999EB
400
#AB62E0
500
#8E2AD5
600
#7122AA
700
#5B1B88
800
#47156A
900
#35134E
950
#220C31

Contrast Checker

Text on white

17.38:1

AA Pass AAA Pass

Text on black

1.21:1

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