#63646D

#63646D

Color Values

HEX

#63646D

RGB

99, 100, 109

HSL

234.0, 4.8%, 40.8%

HSV

234.0, 9.2%, 42.7%

CMYK

9.2%, 8.3%, 0.0%, 57.3%

OKLCH

0.5055 0.0142 280.8

Properties

Cool Dark Nearest: RAL 4012 Pearl Blackberry

Color Harmonies

Complementary

#63646D

#6D6C63

Analogous

#63696D

#67636D

#63646D

Triadic

#63646D

#6D6364

#646D63

Split Complementary

#63646D

#6D6763

#696D63

Tetradic

#63646D

#6D6369

#6D6C63

#636D67

Color Blindness Simulation

Original

#63646D

Protanopia

#63636B

Deuteranopia

#63636A

Tritanopia

#636969

Achromatopsia

#646464

CSS Usage

background-color: #63646D;
color: #63646D;
border-color: #63646D;
Nearest Tailwind: Zinc 500 #71717A

Tailwind Shades

50
#F7F7F8
100
#ECEDEE
200
#DADADD
300
#BFBFC5
400
#9C9DA5
500
#797B86
600
#61626B
700
#4E4E56
800
#3D3D43
900
#2E2F33
950
#1D1E20

Contrast Checker

Text on white

5.88:1

AA Pass AAA Fail

Text on black

3.57:1

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