#101515

#101515

Color Values

HEX

#101515

RGB

16, 21, 21

HSL

180.0, 13.5%, 7.3%

HSV

180.0, 23.8%, 8.2%

CMYK

23.8%, 0.0%, 0.0%, 91.8%

OKLCH

0.1904 0.0077 196.5

Properties

Cool Dark Nearest: RAL 9005 Jet Black

Color Harmonies

Complementary

#101515

#151010

Analogous

#101513

#101315

#101515

Triadic

#101515

#151015

#151510

Split Complementary

#101515

#151013

#151310

Tetradic

#101515

#131015

#151010

#131510

Color Blindness Simulation

Original

#101515

Protanopia

#121215

Deuteranopia

#121215

Tritanopia

#101515

Achromatopsia

#141414

CSS Usage

background-color: #101515;
color: #101515;
border-color: #101515;
Nearest Tailwind: Neutral 900 #171717

Tailwind Shades

50
#F6F8F8
100
#EBEFEF
200
#D6E0E0
300
#BACACA
400
#94ADAD
500
#6E9191
600
#587474
700
#475D5D
800
#374848
900
#2B3636
950
#1B2222

Contrast Checker

Text on white

18.42:1

AA Pass AAA Pass

Text on black

1.14:1

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