#0B3880

#0B3880

Color Values

HEX

#0B3880

RGB

11, 56, 128

HSL

216.9, 84.2%, 27.3%

HSV

216.9, 91.4%, 50.2%

CMYK

91.4%, 56.2%, 0.0%, 49.8%

OKLCH

0.3598 0.1309 260.1

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#0B3880

#80530B

Analogous

#0B7380

#180B80

#0B3880

Triadic

#0B3880

#800B38

#38800B

Split Complementary

#0B3880

#80180B

#73800B

Tetradic

#0B3880

#800B73

#80530B

#0B8018

Color Blindness Simulation

Original

#0B3880

Protanopia

#1E1F6F

Deuteranopia

#1C186A

Tritanopia

#0D615E

Achromatopsia

#343434

CSS Usage

background-color: #0B3880;
color: #0B3880;
border-color: #0B3880;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F2F6FD
100
#E0EAFA
200
#BDD4F9
300
#8EB6F5
400
#518EF0
500
#1467EB
600
#1052BC
700
#0D4296
800
#0A3375
900
#0C2855
950
#071936

Contrast Checker

Text on white

11.1:1

AA Pass AAA Pass

Text on black

1.89:1

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