#042FFB

#042FFB

Color Values

HEX

#042FFB

RGB

4, 47, 251

HSL

229.6, 96.9%, 50.0%

HSV

229.6, 98.4%, 98.4%

CMYK

98.4%, 81.3%, 0.0%, 1.6%

OKLCH

0.4762 0.2895 264.4

Properties

Cool Dark Nearest: mediumblue

Color Harmonies

Complementary

#042FFB

#FBD004

Analogous

#04AAFB

#5504FB

#042FFB

Triadic

#042FFB

#FB042F

#2FFB04

Split Complementary

#042FFB

#FB5504

#AAFB04

Tetradic

#042FFB

#FB04AA

#FBD004

#04FB55

Color Blindness Simulation

Original

#042FFB

Protanopia

#1717CA

Deuteranopia

#1411BE

Tritanopia

#06A39A

Achromatopsia

#353535

CSS Usage

background-color: #042FFB;
color: #042FFB;
border-color: #042FFB;
Nearest Tailwind: Violet 600 #7C3AED

Tailwind Shades

50
#F1F3FE
100
#DEE4FC
200
#B9C5FE
300
#869BFD
400
#4565FC
500
#042FFB
600
#0325C9
700
#031EA1
800
#02177E
900
#06155B
950
#040D39

Contrast Checker

Text on white

7.49:1

AA Pass AAA Pass

Text on black

2.8:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026