#121C13

#121C13

Color Values

HEX

#121C13

RGB

18, 28, 19

HSL

126.0, 21.7%, 9.0%

HSV

126.0, 35.7%, 11.0%

CMYK

35.7%, 0.0%, 32.1%, 89.0%

OKLCH

0.2134 0.0228 147.3

Properties

Cool Dark Nearest: RAL 6022 Olive Drab

Color Harmonies

Complementary

#121C13

#1C121B

Analogous

#161C12

#121C18

#121C13

Triadic

#121C13

#13121C

#1C1312

Split Complementary

#121C13

#18121C

#1C1216

Tetradic

#121C13

#12161C

#1C121B

#1C1812

Color Blindness Simulation

Original

#121C13

Protanopia

#161615

Deuteranopia

#161516

Tritanopia

#121717

Achromatopsia

#191919

CSS Usage

background-color: #121C13;
color: #121C13;
border-color: #121C13;
Nearest Tailwind: Stone 900 #1C1917

Tailwind Shades

50
#F6F9F6
100
#EAF0EB
200
#D4E3D5
300
#B5CFB7
400
#8CB590
500
#649B69
600
#507C54
700
#406343
800
#324E35
900
#273A29
950
#19251A

Contrast Checker

Text on white

17.48:1

AA Pass AAA Pass

Text on black

1.2:1

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