#11103B

#11103B

Color Values

HEX

#11103B

RGB

17, 16, 59

HSL

241.4, 57.3%, 14.7%

HSV

241.4, 72.9%, 23.1%

CMYK

71.2%, 72.9%, 0.0%, 76.9%

OKLCH

0.2072 0.0803 277.8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#11103B

#3A3B10

Analogous

#10243B

#26103B

#11103B

Triadic

#11103B

#3B1110

#103B11

Split Complementary

#11103B

#3B2610

#243B10

Tetradic

#11103B

#3B1024

#3A3B10

#103B26

Color Blindness Simulation

Original

#11103B

Protanopia

#111131

Deuteranopia

#11112E

Tritanopia

#112827

Achromatopsia

#131313

CSS Usage

background-color: #11103B;
color: #11103B;
border-color: #11103B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E5E4F6
200
#C8C7F0
300
#A09FE5
400
#6D6BD7
500
#3A36C9
600
#2E2CA0
700
#252380
800
#1D1B64
900
#191749
950
#100F2E

Contrast Checker

Text on white

18.09:1

AA Pass AAA Pass

Text on black

1.16:1

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