#555CF3

#555CF3

Color Values

HEX

#555CF3

RGB

85, 92, 243

HSL

237,3, 86,8%, 64,3%

HSV

237,3, 65,0%, 95,3%

CMYK

65,0%, 62,1%, 0,0%, 4,7%

OKLCH

0,561 0,2217 274,6

Properties

Cool Dark Nearest: slateblue 1

Color Harmonies

Complementary

#555CF3

#F3EC55

Analogous

#55ABF3

#9D55F3

#555CF3

Triadic

#555CF3

#F3555C

#5CF355

Split Complementary

#555CF3

#F39D55

#ABF355

Tetradic

#555CF3

#F355AB

#F3EC55

#55F39D

Color Blindness Simulation

Original

#555CF3

Protanopia

#5858CF

Deuteranopia

#5857C6

Tritanopia

#55B2AB

Achromatopsia

#656565

CSS Usage

background-color: #555CF3;
color: #555CF3;
border-color: #555CF3;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F2F2FD
100
#E0E1FA
200
#BCBFFA
300
#8D91F7
400
#4F56F3
500
#111BEE
600
#0D15BF
700
#0B1198
800
#080D77
900
#0B0E56
950
#070937

Contrast Checker

Text on white

4,99:1

AA Pass AAA Fail

Text on black

4,21:1

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