#555B9F

#555B9F

Color Values

HEX

#555B9F

RGB

85, 91, 159

HSL

235.1, 30.3%, 47.8%

HSV

235.1, 46.5%, 62.4%

CMYK

46.5%, 42.8%, 0.0%, 37.6%

OKLCH

0.4983 0.1078 277.9

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#555B9F

#9F9955

Analogous

#55809F

#74559F

#555B9F

Triadic

#555B9F

#9F555B

#5B9F55

Split Complementary

#555B9F

#9F7455

#809F55

Tetradic

#555B9F

#9F5580

#9F9955

#559F74

Color Blindness Simulation

Original

#555B9F

Protanopia

#58588F

Deuteranopia

#57578B

Tritanopia

#55827F

Achromatopsia

#5F5F5F

CSS Usage

background-color: #555B9F;
color: #555B9F;
border-color: #555B9F;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F6F9
100
#E9E9F2
200
#D0D2E6
300
#AFB2D4
400
#8489BD
500
#595FA6
600
#474C85
700
#393D6A
800
#2C3053
900
#23253E
950
#161827

Contrast Checker

Text on white

6.21:1

AA Pass AAA Fail

Text on black

3.38:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026