#04337B

#04337B

Color Values

HEX

#04337B

RGB

4, 51, 123

HSL

216.3, 93.7%, 24.9%

HSV

216.3, 96.7%, 48.2%

CMYK

96.7%, 58.5%, 0.0%, 51.8%

OKLCH

0.3425 0.1317 259.8

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#04337B

#7B4C04

Analogous

#046E7B

#10047B

#04337B

Triadic

#04337B

#7B0433

#337B04

Split Complementary

#04337B

#7B1004

#6E7B04

Tetradic

#04337B

#7B046E

#7B4C04

#047B10

Color Blindness Simulation

Original

#04337B

Protanopia

#18196A

Deuteranopia

#161265

Tritanopia

#065C59

Achromatopsia

#2E2E2E

CSS Usage

background-color: #04337B;
color: #04337B;
border-color: #04337B;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F1F6FD
100
#DFEAFB
200
#BAD4FD
300
#88B6FB
400
#488EF9
500
#0866F7
600
#0652C6
700
#05429E
800
#04337B
900
#082859
950
#051938

Contrast Checker

Text on white

11.9:1

AA Pass AAA Pass

Text on black

1.76:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026