#3997EB

#3997EB

Color Values

HEX

#3997EB

RGB

57, 151, 235

HSL

208,3, 81,7%, 57,3%

HSV

208,3, 75,7%, 92,2%

CMYK

75,7%, 35,7%, 0,0%, 7,8%

OKLCH

0,6609 0,1525 249,3

Properties

Cool Light Nearest: cornflowerblue

Color Harmonies

Complementary

#3997EB

#EB8D39

Analogous

#39EBE6

#393EEB

#3997EB

Triadic

#3997EB

#EB3997

#97EB39

Split Complementary

#3997EB

#EB393E

#EBE639

Tetradic

#3997EB

#E639EB

#EB8D39

#3EEB39

Color Blindness Simulation

Original

#3997EB

Protanopia

#6263D7

Deuteranopia

#5C55D2

Tritanopia

#3EC7C3

Achromatopsia

#898989

CSS Usage

background-color: #3997EB;
color: #3997EB;
border-color: #3997EB;
Nearest Tailwind: Blue 400 #60A5FA

Tailwind Shades

50
#F2F8FD
100
#E1EEFA
200
#BEDDF8
300
#90C5F4
400
#54A5EE
500
#1785E8
600
#136BB9
700
#0F5594
800
#0C4374
900
#0D3254
950
#082035

Contrast Checker

Text on white

3,09:1

AA Fail AAA Fail

Text on black

6,8:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026