#151C16

#151C16

Color Values

HEX

#151C16

RGB

21, 28, 22

HSL

128.6, 14.3%, 9.6%

HSV

128.6, 25.0%, 11.0%

CMYK

25.0%, 0.0%, 21.4%, 89.0%

OKLCH

0.2171 0.0156 149.0

Properties

Cool Dark Nearest: RAL 9011 Graphite Black

Color Harmonies

Complementary

#151C16

#1C151B

Analogous

#171C15

#151C19

#151C16

Triadic

#151C16

#16151C

#1C1615

Split Complementary

#151C16

#19151C

#1C1517

Tetradic

#151C16

#15171C

#1C151B

#1C1915

Color Blindness Simulation

Original

#151C16

Protanopia

#181817

Deuteranopia

#181718

Tritanopia

#151919

Achromatopsia

#1A1A1A

CSS Usage

background-color: #151C16;
color: #151C16;
border-color: #151C16;
Nearest Tailwind: Stone 900 #1C1917

Tailwind Shades

50
#F6F8F7
100
#EBEFEC
200
#D6E0D8
300
#B9CBBC
400
#93AE97
500
#6D9272
600
#57755C
700
#465D49
800
#374939
900
#2A372C
950
#1B231C

Contrast Checker

Text on white

17.36:1

AA Pass AAA Pass

Text on black

1.21:1

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