#1F73CC

#1F73CC

Color Values

HEX

#1F73CC

RGB

31, 115, 204

HSL

210.9, 73.6%, 46.1%

HSV

210.9, 84.8%, 80.0%

CMYK

84.8%, 43.6%, 0.0%, 20.0%

OKLCH

0.5549 0.1579 253.9

Properties

Cool Dark Nearest: dodgerblue 3

Color Harmonies

Complementary

#1F73CC

#CC781F

Analogous

#1FC9CC

#221FCC

#1F73CC

Triadic

#1F73CC

#CC1F73

#73CC1F

Split Complementary

#1F73CC

#CC221F

#C9CC1F

Tetradic

#1F73CC

#CC1FC9

#CC781F

#1FCC22

Color Blindness Simulation

Original

#1F73CC

Protanopia

#4344B6

Deuteranopia

#3E38B1

Tritanopia

#23A5A2

Achromatopsia

#686868

CSS Usage

background-color: #1F73CC;
color: #1F73CC;
border-color: #1F73CC;
Nearest Tailwind: Blue 500 #3B82F6

Tailwind Shades

50
#F3F7FC
100
#E2EDF8
200
#C1DBF6
300
#95C0EF
400
#5B9FE6
500
#227DDD
600
#1B64B1
700
#16508E
800
#113E6F
900
#102F51
950
#0A1E33

Contrast Checker

Text on white

4.79:1

AA Pass AAA Fail

Text on black

4.38:1

AA Fail AAA Fail

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