#377BAA

#377BAA

Color Values

HEX

#377BAA

RGB

55, 123, 170

HSL

204.5, 51.1%, 44.1%

HSV

204.5, 67.6%, 66.7%

CMYK

67.6%, 27.6%, 0.0%, 33.3%

OKLCH

0.5603 0.1001 241.8

Properties

Cool Dark Nearest: steelblue

Color Harmonies

Complementary

#377BAA

#AA6637

Analogous

#37AA9F

#3742AA

#377BAA

Triadic

#377BAA

#AA377B

#7BAA37

Split Complementary

#377BAA

#AA3742

#AA9F37

Tetradic

#377BAA

#9F37AA

#AA6637

#42AA37

Color Blindness Simulation

Original

#377BAA

Protanopia

#54559F

Deuteranopia

#504B9C

Tritanopia

#3A9694

Achromatopsia

#707070

CSS Usage

background-color: #377BAA;
color: #377BAA;
border-color: #377BAA;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F8FB
100
#E5EFF5
200
#C9DFEE
300
#A3C8E1
400
#70A9D1
500
#3E8BC1
600
#32709A
700
#28597B
800
#1F4660
900
#1A3547
950
#11212D

Contrast Checker

Text on white

4.59:1

AA Pass AAA Fail

Text on black

4.58:1

AA Pass 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