#042A57

#042A57

Color Values

HEX

#042A57

RGB

4, 42, 87

HSL

212.5, 91.2%, 17.8%

HSV

212.5, 95.4%, 34.1%

CMYK

95.4%, 51.7%, 0.0%, 65.9%

OKLCH

0.2892 0.0913 255.8

Properties

Cool Dark Nearest: RAL 5026 Pearl Night Blue

Color Harmonies

Complementary

#042A57

#573104

Analogous

#045357

#070457

#042A57

Triadic

#042A57

#57042A

#2A5704

Split Complementary

#042A57

#570704

#535704

Tetradic

#042A57

#570453

#573104

#045707

Color Blindness Simulation

Original

#042A57

Protanopia

#14154C

Deuteranopia

#120F4A

Tritanopia

#064442

Achromatopsia

#252525

CSS Usage

background-color: #042A57;
color: #042A57;
border-color: #042A57;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F1F7FD
100
#DFECFB
200
#BBD9FC
300
#8ABDFA
400
#4B99F7
500
#0B76F4
600
#095EC3
700
#074B9C
800
#063B7A
900
#092D58
950
#051D38

Contrast Checker

Text on white

14.25:1

AA Pass AAA Pass

Text on black

1.47:1

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