#17173B

#17173B

Color Values

HEX

#17173B

RGB

23, 23, 59

HSL

240.0, 43.9%, 16.1%

HSV

240.0, 61.0%, 23.1%

CMYK

61.0%, 61.0%, 0.0%, 76.9%

OKLCH

0.228 0.0677 279.6

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#17173B

#3B3B17

Analogous

#17293B

#29173B

#17173B

Triadic

#17173B

#3B1717

#173B17

Split Complementary

#17173B

#3B2917

#293B17

Tetradic

#17173B

#3B1729

#3B3B17

#173B29

Color Blindness Simulation

Original

#17173B

Protanopia

#171732

Deuteranopia

#171730

Tritanopia

#172B2A

Achromatopsia

#1A1A1A

CSS Usage

background-color: #17173B;
color: #17173B;
border-color: #17173B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CCCCEB
300
#A7A7DD
400
#7777CA
500
#4848B7
600
#393993
700
#2E2E75
800
#24245C
900
#1D1D44
950
#13132B

Contrast Checker

Text on white

17.18:1

AA Pass AAA Pass

Text on black

1.22:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026