#171C45

#171C45

Color Values

HEX

#171C45

RGB

23, 28, 69

HSL

233.5, 50.0%, 18.0%

HSV

233.5, 66.7%, 27.1%

CMYK

66.7%, 59.4%, 0.0%, 72.9%

OKLCH

0.2483 0.0765 274.2

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#171C45

#454017

Analogous

#173345

#291745

#171C45

Triadic

#171C45

#45171C

#1C4517

Split Complementary

#171C45

#452917

#334517

Tetradic

#171C45

#451733

#454017

#174529

Color Blindness Simulation

Original

#171C45

Protanopia

#19193B

Deuteranopia

#191839

Tritanopia

#173332

Achromatopsia

#1E1E1E

CSS Usage

background-color: #171C45;
color: #171C45;
border-color: #171C45;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F5FB
100
#E6E7F5
200
#C9CDED
300
#A3AAE0
400
#717CD0
500
#404EBF
600
#333E99
700
#29327A
800
#202760
900
#1B1F46
950
#11142C

Contrast Checker

Text on white

16.3:1

AA Pass AAA Pass

Text on black

1.29:1

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