#6366D7

#6366D7

Color Values

HEX

#6366D7

RGB

99, 102, 215

HSL

238.4, 59.2%, 61.6%

HSV

238.4, 54.0%, 84.3%

CMYK

54.0%, 52.6%, 0.0%, 15.7%

OKLCH

0.5666 0.1696 278.4

Properties

Cool Dark Nearest: slateblue

Color Harmonies

Complementary

#6366D7

#D7D463

Analogous

#63A0D7

#9A63D7

#6366D7

Triadic

#6366D7

#D76366

#66D763

Split Complementary

#6366D7

#D79A63

#A0D763

Tetradic

#6366D7

#D763A0

#D7D463

#63D79A

Color Blindness Simulation

Original

#6366D7

Protanopia

#6464BC

Deuteranopia

#6464B5

Tritanopia

#63A6A1

Achromatopsia

#6E6E6E

CSS Usage

background-color: #6366D7;
color: #6366D7;
border-color: #6366D7;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F4F4FB
100
#E4E5F6
200
#C6C7F0
300
#9EA0E6
400
#696CD9
500
#3438CB
600
#2A2DA2
700
#212482
800
#1A1C65
900
#17184A
950
#0E0F2F

Contrast Checker

Text on white

4.76:1

AA Pass AAA Fail

Text on black

4.41:1

AA Fail 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