#121B15

#121B15

Color Values

HEX

#121B15

RGB

18, 27, 21

HSL

140.0, 20.0%, 8.8%

HSV

140.0, 33.3%, 10.6%

CMYK

33.3%, 0.0%, 22.2%, 89.4%

OKLCH

0.2109 0.0177 155.4

Properties

Cool Dark Nearest: RAL 9011 Graphite Black

Color Harmonies

Complementary

#121B15

#1B1218

Analogous

#131B12

#121B19

#121B15

Triadic

#121B15

#15121B

#1B1512

Split Complementary

#121B15

#19121B

#1B1213

Tetradic

#121B15

#12131B

#1B1218

#1B1912

Color Blindness Simulation

Original

#121B15

Protanopia

#161616

Deuteranopia

#151517

Tritanopia

#121818

Achromatopsia

#191919

CSS Usage

background-color: #121B15;
color: #121B15;
border-color: #121B15;
Nearest Tailwind: Neutral 900 #171717

Tailwind Shades

50
#F6F9F7
100
#EAF0EC
200
#D4E2D9
300
#B6CEBE
400
#8EB49A
500
#669977
600
#527A5F
700
#41624C
800
#334D3C
900
#28392E
950
#19241D

Contrast Checker

Text on white

17.6:1

AA Pass AAA Pass

Text on black

1.19:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026