#6399DA

#6399DA

Color Values

HEX

#6399DA

RGB

99, 153, 218

HSL

212.8, 61.7%, 62.2%

HSV

212.8, 54.6%, 85.5%

CMYK

54.6%, 29.8%, 0.0%, 14.5%

OKLCH

0.6727 0.1129 253.8

Properties

Cool Light Nearest: steelblue 3

Color Harmonies

Complementary

#6399DA

#DAA463

Analogous

#63D5DA

#6963DA

#6399DA

Triadic

#6399DA

#DA6399

#99DA63

Split Complementary

#6399DA

#DA6963

#D5DA63

Tetradic

#6399DA

#DA63D5

#DAA463

#63DA69

Color Blindness Simulation

Original

#6399DA

Protanopia

#7A7BCA

Deuteranopia

#7773C6

Tritanopia

#66BEBB

Achromatopsia

#929292

CSS Usage

background-color: #6399DA;
color: #6399DA;
border-color: #6399DA;
Nearest Tailwind: Blue 400 #60A5FA

Tailwind Shades

50
#F3F7FB
100
#E4ECF7
200
#C5D9F1
300
#9CBEE8
400
#669BDB
500
#3178CE
600
#2760A5
700
#1F4D84
800
#183C67
900
#162E4B
950
#0E1D30

Contrast Checker

Text on white

2.96:1

AA Fail AAA Fail

Text on black

7.1:1

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