#666A7F

#666A7F

Color Values

HEX

#666A7F

RGB

102, 106, 127

HSL

230.4, 10.9%, 44.9%

HSV

230.4, 19.7%, 49.8%

CMYK

19.7%, 16.5%, 0.0%, 50.2%

OKLCH

0.5285 0.0333 276.7

Properties

Cool Dark Nearest: RAL 4012 Pearl Blackberry

Color Harmonies

Complementary

#666A7F

#7F7B66

Analogous

#66767F

#6F667F

#666A7F

Triadic

#666A7F

#7F666A

#6A7F66

Split Complementary

#666A7F

#7F6F66

#767F66

Tetradic

#666A7F

#7F6676

#7F7B66

#667F6F

Color Blindness Simulation

Original

#666A7F

Protanopia

#68687A

Deuteranopia

#686779

Tritanopia

#667675

Achromatopsia

#6B6B6B

CSS Usage

background-color: #666A7F;
color: #666A7F;
border-color: #666A7F;
Nearest Tailwind: Gray 500 #6B7280

Tailwind Shades

50
#F7F7F8
100
#EBECEF
200
#D7D9DF
300
#BBBDC8
400
#969AAB
500
#72768D
600
#5B5E71
700
#494C5A
800
#393B47
900
#2C2D35
950
#1C1D22

Contrast Checker

Text on white

5.34:1

AA Pass AAA Fail

Text on black

3.93:1

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