#042F70

#042F70

Color Values

HEX

#042F70

RGB

4, 47, 112

HSL

216.1, 93.1%, 22.7%

HSV

216.1, 96.4%, 43.9%

CMYK

96.4%, 58.0%, 0.0%, 56.1%

OKLCH

0.3233 0.1214 259.5

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#042F70

#704504

Analogous

#046570

#0F0470

#042F70

Triadic

#042F70

#70042F

#2F7004

Split Complementary

#042F70

#700F04

#657004

Tetradic

#042F70

#700465

#704504

#04700F

Color Blindness Simulation

Original

#042F70

Protanopia

#171760

Deuteranopia

#14115C

Tritanopia

#065451

Achromatopsia

#2B2B2B

CSS Usage

background-color: #042F70;
color: #042F70;
border-color: #042F70;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F1F6FD
100
#DFEAFB
200
#BAD5FD
300
#89B6FB
400
#498FF8
500
#0967F6
600
#0753C5
700
#06429E
800
#04347B
900
#082859
950
#051938

Contrast Checker

Text on white

12.76:1

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

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