#557F9B

#557F9B

Color Values

HEX

#557F9B

RGB

85, 127, 155

HSL

204.0, 29.2%, 47.1%

HSV

204.0, 45.2%, 60.8%

CMYK

45.2%, 18.1%, 0.0%, 39.2%

OKLCH

0.5768 0.0636 238.5

Properties

Cool Light Nearest: skyblue 4

Color Harmonies

Complementary

#557F9B

#9B7155

Analogous

#559B94

#555C9B

#557F9B

Triadic

#557F9B

#9B557F

#7F9B55

Split Complementary

#557F9B

#9B555C

#9B9455

Tetradic

#557F9B

#94559B

#9B7155

#5C9B55

Color Blindness Simulation

Original

#557F9B

Protanopia

#676894

Deuteranopia

#656293

Tritanopia

#578F8E

Achromatopsia

#787878

CSS Usage

background-color: #557F9B;
color: #557F9B;
border-color: #557F9B;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F8F9
100
#E9EEF2
200
#D1DDE6
300
#B0C5D4
400
#85A6BC
500
#5A87A5
600
#486C84
700
#3A5669
800
#2D4352
900
#24333D
950
#172027

Contrast Checker

Text on white

4.29:1

AA Fail AAA Fail

Text on black

4.9:1

AA Pass 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