#042D71

#042D71

Color Values

HEX

#042D71

RGB

4, 45, 113

HSL

217,4, 93,2%, 22,9%

HSV

217,4, 96,5%, 44,3%

CMYK

96,5%, 60,2%, 0,0%, 55,7%

OKLCH

0,3196 0,1255 260,4

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#042D71

#714804

Analogous

#046371

#110471

#042D71

Triadic

#042D71

#71042D

#2D7104

Split Complementary

#042D71

#711104

#637104

Tetradic

#042D71

#710463

#714804

#047111

Color Blindness Simulation

Original

#042D71

Protanopia

#161661

Deuteranopia

#13105D

Tritanopia

#065451

Achromatopsia

#292929

CSS Usage

background-color: #042D71;
color: #042D71;
border-color: #042D71;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F1F6FD
100
#DFEAFB
200
#BAD3FD
300
#89B4FB
400
#498BF9
500
#0962F6
600
#074FC5
700
#063F9E
800
#04317B
900
#082659
950
#051838

Contrast Checker

Text on white

12,97:1

AA Pass AAA Pass

Text on black

1,62:1

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