#0B397F

#0B397F

Color Values

HEX

#0B397F

RGB

11, 57, 127

HSL

216,2, 84,1%, 27,1%

HSV

216,2, 91,3%, 49,8%

CMYK

91,3%, 55,1%, 0,0%, 50,2%

OKLCH

0,3612 0,1281 259,5

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#0B397F

#7F510B

Analogous

#0B737F

#170B7F

#0B397F

Triadic

#0B397F

#7F0B39

#397F0B

Split Complementary

#0B397F

#7F170B

#737F0B

Tetradic

#0B397F

#7F0B73

#7F510B

#0B7F17

Color Blindness Simulation

Original

#0B397F

Protanopia

#1F1F6E

Deuteranopia

#1C196A

Tritanopia

#0D615E

Achromatopsia

#343434

CSS Usage

background-color: #0B397F;
color: #0B397F;
border-color: #0B397F;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F2F6FD
100
#E0EBFA
200
#BDD5F9
300
#8EB7F5
400
#5190F0
500
#1469EB
600
#1054BC
700
#0D4396
800
#0A3575
900
#0C2955
950
#071A36

Contrast Checker

Text on white

11,02:1

AA Pass AAA Pass

Text on black

1,91:1

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