#0B3B80

#0B3B80

Color Values

HEX

#0B3B80

RGB

11, 59, 128

HSL

215.4, 84.2%, 27.3%

HSV

215.4, 91.4%, 50.2%

CMYK

91.4%, 53.9%, 0.0%, 49.8%

OKLCH

0.3666 0.1269 258.8

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#0B3B80

#80500B

Analogous

#0B7680

#160B80

#0B3B80

Triadic

#0B3B80

#800B3B

#3B800B

Split Complementary

#0B3B80

#80160B

#76800B

Tetradic

#0B3B80

#800B76

#80500B

#0B8016

Color Blindness Simulation

Original

#0B3B80

Protanopia

#20206F

Deuteranopia

#1D196B

Tritanopia

#0D625F

Achromatopsia

#363636

CSS Usage

background-color: #0B3B80;
color: #0B3B80;
border-color: #0B3B80;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F2F6FD
100
#E0EBFA
200
#BDD6F9
300
#8EB9F5
400
#5192F0
500
#146CEB
600
#1057BC
700
#0D4596
800
#0A3675
900
#0C2A55
950
#071A36

Contrast Checker

Text on white

10.76:1

AA Pass AAA Pass

Text on black

1.95:1

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