#172A41

#172A41

Color Values

HEX

#172A41

RGB

23, 42, 65

HSL

212.9, 47.7%, 17.3%

HSV

212.9, 64.6%, 25.5%

CMYK

64.6%, 35.4%, 0.0%, 74.5%

OKLCH

0.281 0.0495 254.0

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#172A41

#412E17

Analogous

#173F41

#191741

#172A41

Triadic

#172A41

#41172A

#2A4117

Split Complementary

#172A41

#411917

#3F4117

Tetradic

#172A41

#41173F

#412E17

#174119

Color Blindness Simulation

Original

#172A41

Protanopia

#1F1F3B

Deuteranopia

#1E1D3A

Tritanopia

#183736

Achromatopsia

#282828

CSS Usage

background-color: #172A41;
color: #172A41;
border-color: #172A41;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F4F7FA
100
#E6ECF4
200
#CADAEC
300
#A5BFDF
400
#749CCE
500
#437ABC
600
#356197
700
#2B4E79
800
#213D5E
900
#1C2E45
950
#111D2C

Contrast Checker

Text on white

14.54:1

AA Pass AAA Pass

Text on black

1.44:1

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