#3F99F4

#3F99F4

Color Values

HEX

#3F99F4

RGB

63, 153, 244

HSL

210.2, 89.2%, 60.2%

HSV

210.2, 74.2%, 95.7%

CMYK

74.2%, 37.3%, 0.0%, 4.3%

OKLCH

0.6722 0.1597 251.7

Properties

Cool Light Nearest: cornflowerblue

Color Harmonies

Complementary

#3F99F4

#F49A3F

Analogous

#3FF3F4

#403FF4

#3F99F4

Triadic

#3F99F4

#F43F99

#99F43F

Split Complementary

#3F99F4

#F4403F

#F3F43F

Tetradic

#3F99F4

#F43FF3

#F49A3F

#3FF440

Color Blindness Simulation

Original

#3F99F4

Protanopia

#6667DE

Deuteranopia

#615AD9

Tritanopia

#44CDC9

Achromatopsia

#8C8C8C

CSS Usage

background-color: #3F99F4;
color: #3F99F4;
border-color: #3F99F4;
Nearest Tailwind: Blue 400 #60A5FA

Tailwind Shades

50
#F2F7FD
100
#E0EDFB
200
#BBDBFB
300
#8BC1F8
400
#4CA0F5
500
#0E7FF1
600
#0B65C1
700
#09519A
800
#073F79
900
#0A3057
950
#061E37

Contrast Checker

Text on white

2.97:1

AA Fail AAA Fail

Text on black

7.07:1

AA Pass AAA Pass

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