#559BDF

#559BDF

Color Values

HEX

#559BDF

RGB

85, 155, 223

HSL

209.6, 68.3%, 60.4%

HSV

209.6, 61.9%, 87.5%

CMYK

61.9%, 30.5%, 0.0%, 12.5%

OKLCH

0.6732 0.1238 249.5

Properties

Cool Light Nearest: steelblue 2

Color Harmonies

Complementary

#559BDF

#DF9955

Analogous

#55DFDE

#5556DF

#559BDF

Triadic

#559BDF

#DF559B

#9BDF55

Split Complementary

#559BDF

#DF5556

#DFDE55

Tetradic

#559BDF

#DE55DF

#DF9955

#56DF55

Color Blindness Simulation

Original

#559BDF

Protanopia

#7374CF

Deuteranopia

#6F6ACB

Tritanopia

#58C2BF

Achromatopsia

#919191

CSS Usage

background-color: #559BDF;
color: #559BDF;
border-color: #559BDF;
Nearest Tailwind: Sky 500 #0EA5E9

Tailwind Shades

50
#F3F7FC
100
#E3EDF8
200
#C3DCF4
300
#98C2EC
400
#60A2E1
500
#2881D7
600
#2067AC
700
#1A5289
800
#14406B
900
#13314E
950
#0C1F31

Contrast Checker

Text on white

2.94:1

AA Fail AAA Fail

Text on black

7.14:1

AA Pass AAA Pass

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026