#556F6B

#556F6B

Color Values

HEX

#556F6B

RGB

85, 111, 107

HSL

170.8, 13.3%, 38.4%

HSV

170.8, 23.4%, 43.5%

CMYK

23.4%, 0.0%, 3.6%, 56.5%

OKLCH

0.5198 0.0312 184.7

Properties

Cool Dark Nearest: RAL 7005 Mouse Grey

Color Harmonies

Complementary

#556F6B

#6F5559

Analogous

#556F5E

#55666F

#556F6B

Triadic

#556F6B

#6B556F

#6F6B55

Split Complementary

#556F6B

#6F5566

#6F5E55

Tetradic

#556F6B

#5E556F

#6F5559

#666F55

Color Blindness Simulation

Original

#556F6B

Protanopia

#60606C

Deuteranopia

#5F5D6C

Tritanopia

#566D6D

Achromatopsia

#696969

CSS Usage

background-color: #556F6B;
color: #556F6B;
border-color: #556F6B;
Nearest Tailwind: Neutral 500 #737373

Tailwind Shades

50
#F6F8F8
100
#EBEFEF
200
#D7E0DF
300
#BACAC7
400
#94ADA9
500
#6F908B
600
#58746F
700
#475C59
800
#374846
900
#2B3634
950
#1B2221

Contrast Checker

Text on white

5.42:1

AA Pass AAA Fail

Text on black

3.87:1

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