#173F5C

#173F5C

Color Values

HEX

#173F5C

RGB

23, 63, 92

HSL

205.2, 60.0%, 22.5%

HSV

205.2, 75.0%, 36.1%

CMYK

75.0%, 31.5%, 0.0%, 63.9%

OKLCH

0.3542 0.0674 243.4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#173F5C

#5C3417

Analogous

#175C56

#171C5C

#173F5C

Triadic

#173F5C

#5C173F

#3F5C17

Split Complementary

#173F5C

#5C171C

#5C5617

Tetradic

#173F5C

#56175C

#5C3417

#1C5C17

Color Blindness Simulation

Original

#173F5C

Protanopia

#282955

Deuteranopia

#262353

Tritanopia

#194F4E

Achromatopsia

#393939

CSS Usage

background-color: #173F5C;
color: #173F5C;
border-color: #173F5C;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F3F8FB
100
#E4EFF6
200
#C6DFF1
300
#9DC8E7
400
#68AAD9
500
#338CCC
600
#2970A3
700
#215983
800
#1A4666
900
#16354B
950
#0E212F

Contrast Checker

Text on white

11.04:1

AA Pass AAA Pass

Text on black

1.9:1

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