#0A3783

#0A3783

Color Values

HEX

#0A3783

RGB

10, 55, 131

HSL

217.7, 85.8%, 27.6%

HSV

217.7, 92.4%, 51.4%

CMYK

92.4%, 58.0%, 0.0%, 48.6%

OKLCH

0.36 0.1366 260.7

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#0A3783

#83560A

Analogous

#0A7383

#190A83

#0A3783

Triadic

#0A3783

#830A37

#37830A

Split Complementary

#0A3783

#83190A

#73830A

Tetradic

#0A3783

#830A73

#83560A

#0A8319

Color Blindness Simulation

Original

#0A3783

Protanopia

#1D1E71

Deuteranopia

#1B186C

Tritanopia

#0C625F

Achromatopsia

#333333

CSS Usage

background-color: #0A3783;
color: #0A3783;
border-color: #0A3783;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F2F6FD
100
#E0EAFA
200
#BDD3FA
300
#8DB4F6
400
#508CF2
500
#1263ED
600
#0E50BE
700
#0C4098
800
#093276
900
#0B2756
950
#071936

Contrast Checker

Text on white

11.13:1

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