#042F3B

#042F3B

Color Values

HEX

#042F3B

RGB

4, 47, 59

HSL

193.1, 87.3%, 12.4%

HSV

193.1, 93.2%, 23.1%

CMYK

93.2%, 20.3%, 0.0%, 76.9%

OKLCH

0.2837 0.0492 221.6

Properties

Cool Dark Nearest: RAL 5001 Green Blue

Color Harmonies

Complementary

#042F3B

#3B1004

Analogous

#043B2C

#04143B

#042F3B

Triadic

#042F3B

#3B042F

#2F3B04

Split Complementary

#042F3B

#3B0414

#3B2C04

Tetradic

#042F3B

#2C043B

#3B1004

#143B04

Color Blindness Simulation

Original

#042F3B

Protanopia

#171738

Deuteranopia

#141137

Tritanopia

#063635

Achromatopsia

#272727

CSS Usage

background-color: #042F3B;
color: #042F3B;
border-color: #042F3B;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F2FBFD
100
#E0F5FA
200
#BCEDFA
300
#8CE0F7
400
#4ECFF3
500
#10BEEF
600
#0D98BF
700
#0A7A99
800
#085F77
900
#0A4657
950
#072C37

Contrast Checker

Text on white

14.24:1

AA Pass AAA Pass

Text on black

1.47:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026