#10173B

#10173B

Color Values

HEX

#10173B

RGB

16, 23, 59

HSL

230.2, 57.3%, 14.7%

HSV

230.2, 72.9%, 23.1%

CMYK

72.9%, 61.0%, 0.0%, 76.9%

OKLCH

0.2223 0.0698 271.3

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#10173B

#3B3410

Analogous

#102D3B

#1E103B

#10173B

Triadic

#10173B

#3B1017

#173B10

Split Complementary

#10173B

#3B1E10

#2D3B10

Tetradic

#10173B

#3B102D

#3B3410

#103B1E

Color Blindness Simulation

Original

#10173B

Protanopia

#131332

Deuteranopia

#131230

Tritanopia

#102B2A

Achromatopsia

#181818

CSS Usage

background-color: #10173B;
color: #10173B;
border-color: #10173B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F5FB
100
#E4E7F6
200
#C7CEF0
300
#9FAAE5
400
#6B7CD7
500
#364EC9
600
#2C3FA0
700
#233280
800
#1B2764
900
#172049
950
#0F142E

Contrast Checker

Text on white

17.39:1

AA Pass AAA Pass

Text on black

1.21:1

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