#557DA4

#557DA4

Color Values

HEX

#557DA4

RGB

85, 125, 164

HSL

209,6, 31,7%, 48,8%

HSV

209,6, 48,2%, 64,3%

CMYK

48,2%, 23,8%, 0,0%, 35,7%

OKLCH

0,5762 0,0753 248,6

Properties

Cool Light Nearest: steelblue

Color Harmonies

Complementary

#557DA4

#A47C55

Analogous

#55A4A3

#5556A4

#557DA4

Triadic

#557DA4

#A4557D

#7DA455

Split Complementary

#557DA4

#A45556

#A4A355

Tetradic

#557DA4

#A355A4

#A47C55

#56A455

Color Blindness Simulation

Original

#557DA4

Protanopia

#66679B

Deuteranopia

#646198

Tritanopia

#579391

Achromatopsia

#777777

CSS Usage

background-color: #557DA4;
color: #557DA4;
border-color: #557DA4;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F7F9
100
#E8EDF2
200
#D0DBE7
300
#AEC2D5
400
#83A1BF
500
#5780A8
600
#466686
700
#38526B
800
#2C4054
900
#23313E
950
#161F27

Contrast Checker

Text on white

4,32:1

AA Fail AAA Fail

Text on black

4,86:1

AA Pass AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Oca 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Oca 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Oca 15, 2026