#04072B

#04072B

Color Values

HEX

#04072B

RGB

4, 7, 43

HSL

235,4, 83,0%, 9,2%

HSV

235,4, 90,7%, 16,9%

CMYK

90,7%, 83,7%, 0,0%, 83,1%

OKLCH

0,158 0,0725 270,0

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#04072B

#2B2804

Analogous

#041A2B

#14042B

#04072B

Triadic

#04072B

#2B0407

#072B04

Split Complementary

#04072B

#2B1404

#1A2B04

Tetradic

#04072B

#2B041A

#2B2804

#042B14

Color Blindness Simulation

Original

#04072B

Protanopia

#050522

Deuteranopia

#050520

Tritanopia

#041B1A

Achromatopsia

#090909

CSS Usage

background-color: #04072B;
color: #04072B;
border-color: #04072B;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F2F3FD
100
#E1E2FA
200
#BEC2F9
300
#8F97F5
400
#525EEF
500
#1626E9
600
#111EBB
700
#0E1895
800
#0B1375
900
#0C1255
950
#080B35

Contrast Checker

Text on white

19,62:1

AA Pass AAA Pass

Text on black

1,07:1

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