#171653

#171653

Color Values

HEX

#171653

RGB

23, 22, 83

HSL

241.0, 58.1%, 20.6%

HSV

241.0, 73.5%, 32.5%

CMYK

72.3%, 73.5%, 0.0%, 67.5%

OKLCH

0.2493 0.1072 276.0

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#171653

#525316

Analogous

#163453

#361653

#171653

Triadic

#171653

#531716

#165317

Split Complementary

#171653

#533616

#345316

Tetradic

#171653

#531634

#525316

#165336

Color Blindness Simulation

Original

#171653

Protanopia

#171744

Deuteranopia

#171741

Tritanopia

#173936

Achromatopsia

#1B1B1B

CSS Usage

background-color: #171653;
color: #171653;
border-color: #171653;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E5E4F6
200
#C7C7F0
300
#9F9EE5
400
#6C6AD7
500
#3835CA
600
#2D2BA1
700
#242281
800
#1C1B65
900
#18174A
950
#0F0F2F

Contrast Checker

Text on white

16.46:1

AA Pass AAA Pass

Text on black

1.28:1

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