#66707C

#66707C

Color Values

HEX

#66707C

RGB

102, 112, 124

HSL

212.7, 9.7%, 44.3%

HSV

212.7, 17.7%, 48.6%

CMYK

17.7%, 9.7%, 0.0%, 51.4%

OKLCH

0.5409 0.0224 253.0

Properties

Cool Dark Nearest: lightsteelblue 4

Color Harmonies

Complementary

#66707C

#7C7266

Analogous

#667B7C

#67667C

#66707C

Triadic

#66707C

#7C6670

#707C66

Split Complementary

#66707C

#7C6766

#7B7C66

Tetradic

#66707C

#7C667B

#7C7266

#667C67

Color Blindness Simulation

Original

#66707C

Protanopia

#6A6A79

Deuteranopia

#6A6978

Tritanopia

#667776

Achromatopsia

#6F6F6F

CSS Usage

background-color: #66707C;
color: #66707C;
border-color: #66707C;
Nearest Tailwind: Gray 500 #6B7280

Tailwind Shades

50
#F7F7F8
100
#ECEDEF
200
#D8DBDF
300
#BCC1C8
400
#97A0AA
500
#737E8C
600
#5C6570
700
#4A515A
800
#3A3F46
900
#2C3035
950
#1C1E21

Contrast Checker

Text on white

5.03:1

AA Pass AAA Fail

Text on black

4.17:1

AA Fail 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