#377DD7

#377DD7

Color Values

HEX

#377DD7

RGB

55, 125, 215

HSL

213.8, 66.7%, 52.9%

HSV

213.8, 74.4%, 84.3%

CMYK

74.4%, 41.9%, 0.0%, 15.7%

OKLCH

0.5908 0.1546 256.1

Properties

Cool Light Nearest: dodgerblue 3

Color Harmonies

Complementary

#377DD7

#D79137

Analogous

#37CDD7

#4137D7

#377DD7

Triadic

#377DD7

#D7377D

#7DD737

Split Complementary

#377DD7

#D74137

#CDD737

Tetradic

#377DD7

#D737CD

#D79137

#37D741

Color Blindness Simulation

Original

#377DD7

Protanopia

#5556C1

Deuteranopia

#514CBC

Tritanopia

#3AB0AC

Achromatopsia

#757575

CSS Usage

background-color: #377DD7;
color: #377DD7;
border-color: #377DD7;
Nearest Tailwind: Blue 500 #3B82F6

Tailwind Shades

50
#F3F7FC
100
#E3ECF7
200
#C3D8F3
300
#99BDEB
400
#6299E0
500
#2A75D5
600
#225DAA
700
#1B4B88
800
#153A6A
900
#132D4E
950
#0C1C31

Contrast Checker

Text on white

4.14:1

AA Fail AAA Fail

Text on black

5.08:1

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