#668AA5

#668AA5

Color Values

HEX

#668AA5

RGB

102, 138, 165

HSL

205.7, 25.9%, 52.4%

HSV

205.7, 38.2%, 64.7%

CMYK

38.2%, 16.4%, 0.0%, 35.3%

OKLCH

0.6167 0.0575 241.2

Properties

Cool Light Nearest: lightslategrey

Color Harmonies

Complementary

#668AA5

#A58166

Analogous

#66A5A1

#666BA5

#668AA5

Triadic

#668AA5

#A5668A

#8AA566

Split Complementary

#668AA5

#A5666B

#A5A166

Tetradic

#668AA5

#A166A5

#A58166

#6BA566

Color Blindness Simulation

Original

#668AA5

Protanopia

#76769E

Deuteranopia

#74719D

Tritanopia

#689998

Achromatopsia

#848484

CSS Usage

background-color: #668AA5;
color: #668AA5;
border-color: #668AA5;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#E9EEF1
200
#D2DDE5
300
#B2C4D2
400
#88A4B9
500
#5E84A1
600
#4C6A80
700
#3C5567
800
#2F4250
900
#25323C
950
#172026

Contrast Checker

Text on white

3.66:1

AA Fail AAA Fail

Text on black

5.74:1

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