#0055AB

#0055AB

Color Values

HEX

#0055AB

RGB

0, 85, 171

HSL

210.2, 100.0%, 33.5%

HSV

210.2, 100.0%, 67.1%

CMYK

100.0%, 50.3%, 0.0%, 32.9%

OKLCH

0.459 0.1546 255.6

Properties

Cool Dark Nearest: NCS S 2065-B Pure Blue

Color Harmonies

Complementary

#0055AB

#AB5600

Analogous

#00AAAB

#0100AB

#0055AB

Triadic

#0055AB

#AB0055

#55AB00

Split Complementary

#0055AB

#AB0100

#AAAB00

Tetradic

#0055AB

#AB00AA

#AB5600

#00AB01

Color Blindness Simulation

Original

#0055AB

Protanopia

#252696

Deuteranopia

#201A91

Tritanopia

#048682

Achromatopsia

#494949

CSS Usage

background-color: #0055AB;
color: #0055AB;
border-color: #0055AB;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F1F7FE
100
#DEEDFC
200
#B8DBFF
300
#85C1FF
400
#42A0FF
500
#007FFF
600
#0065CC
700
#0051A3
800
#003F80
900
#05305C
950
#031E3A

Contrast Checker

Text on white

7.27:1

AA Pass AAA Pass

Text on black

2.89:1

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