#172838

#172838

Color Values

HEX

#172838

RGB

23, 40, 56

HSL

209.1, 41.8%, 15.5%

HSV

209.1, 58.9%, 22.0%

CMYK

58.9%, 28.6%, 0.0%, 78.0%

OKLCH

0.27 0.0376 247.9

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#172838

#382717

Analogous

#173838

#171738

#172838

Triadic

#172838

#381728

#283817

Split Complementary

#172838

#381717

#383817

Tetradic

#172838

#381738

#382717

#173817

Color Blindness Simulation

Original

#172838

Protanopia

#1E1F34

Deuteranopia

#1D1C33

Tritanopia

#183130

Achromatopsia

#262626

CSS Usage

background-color: #172838;
color: #172838;
border-color: #172838;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F5F7FA
100
#E7EDF3
200
#CCDCEA
300
#A8C3DB
400
#79A2C8
500
#4A81B5
600
#3B6791
700
#2F5374
800
#25415A
900
#1E3143
950
#131F2A

Contrast Checker

Text on white

15.03:1

AA Pass AAA Pass

Text on black

1.4:1

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