#042F71

#042F71

Color Values

HEX

#042F71

RGB

4, 47, 113

HSL

216,3, 93,2%, 22,9%

HSV

216,3, 96,5%, 44,3%

CMYK

96,5%, 58,4%, 0,0%, 55,7%

OKLCH

0,3242 0,1228 259,7

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#042F71

#714604

Analogous

#046571

#0F0471

#042F71

Triadic

#042F71

#71042F

#2F7104

Split Complementary

#042F71

#710F04

#657104

Tetradic

#042F71

#710465

#714604

#04710F

Color Blindness Simulation

Original

#042F71

Protanopia

#171761

Deuteranopia

#14115D

Tritanopia

#065452

Achromatopsia

#2B2B2B

CSS Usage

background-color: #042F71;
color: #042F71;
border-color: #042F71;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F1F6FD
100
#DFEAFB
200
#BAD4FD
300
#89B6FB
400
#498EF9
500
#0967F6
600
#0752C5
700
#06429E
800
#04337B
900
#082859
950
#051938

Contrast Checker

Text on white

12,73:1

AA Pass AAA Pass

Text on black

1,65:1

AA Fail 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