#171D62

#171D62

Color Values

HEX

#171D62

RGB

23, 29, 98

HSL

235.2, 62.0%, 23.7%

HSV

235.2, 76.5%, 38.4%

CMYK

76.5%, 70.4%, 0.0%, 61.6%

OKLCH

0.2784 0.1201 271.9

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#171D62

#625C17

Analogous

#174262

#361762

#171D62

Triadic

#171D62

#62171D

#1D6217

Split Complementary

#171D62

#623617

#426217

Tetradic

#171D62

#621742

#625C17

#176236

Color Blindness Simulation

Original

#171D62

Protanopia

#1A1A51

Deuteranopia

#19194D

Tritanopia

#174441

Achromatopsia

#212121

CSS Usage

background-color: #171D62;
color: #171D62;
border-color: #171D62;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F3F4FB
100
#E4E5F7
200
#C5C9F1
300
#9CA2E8
400
#6670DB
500
#303DCF
600
#2731A5
700
#1F2784
800
#181F67
900
#151A4B
950
#0E1030

Contrast Checker

Text on white

15.12:1

AA Pass AAA Pass

Text on black

1.39:1

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