#17288C

#17288C

Color Values

HEX

#17288C

RGB

23, 40, 140

HSL

231.3, 71.8%, 32.0%

HSV

231.3, 83.6%, 54.9%

CMYK

83.6%, 71.4%, 0.0%, 45.1%

OKLCH

0.343 0.1647 267.9

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#17288C

#8C7B17

Analogous

#17638C

#41178C

#17288C

Triadic

#17288C

#8C1728

#288C17

Split Complementary

#17288C

#8C4117

#638C17

Tetradic

#17288C

#8C1763

#8C7B17

#178C41

Color Blindness Simulation

Original

#17288C

Protanopia

#1E1F74

Deuteranopia

#1D1C6E

Tritanopia

#18615C

Achromatopsia

#2C2C2C

CSS Usage

background-color: #17288C;
color: #17288C;
border-color: #17288C;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F4FC
100
#E2E5F8
200
#C2C9F5
300
#96A3EE
400
#5D71E4
500
#243FDB
600
#1D32AF
700
#17288C
800
#121F6E
900
#111A50
950
#0B1132

Contrast Checker

Text on white

12.22:1

AA Pass AAA Pass

Text on black

1.72:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026