#121D03

#121D03

Color Values

HEX

#121D03

RGB

18, 29, 3

HSL

85.4, 81.2%, 6.3%

HSV

85.4, 89.7%, 11.4%

CMYK

37.9%, 0.0%, 89.7%, 88.6%

OKLCH

0.2128 0.0491 128.5

Properties

Cool Dark Nearest: RAL 6022 Olive Drab

Color Harmonies

Complementary

#121D03

#0E031D

Analogous

#1D1B03

#051D03

#121D03

Triadic

#121D03

#03121D

#1D0312

Split Complementary

#121D03

#03051D

#1B031D

Tetradic

#121D03

#031D1B

#0E031D

#1D0305

Color Blindness Simulation

Original

#121D03

Protanopia

#171709

Deuteranopia

#16150B

Tritanopia

#130E0F

Achromatopsia

#191919

CSS Usage

background-color: #121D03;
color: #121D03;
border-color: #121D03;
Nearest Tailwind: Green 950 #052E16

Tailwind Shades

50
#F8FDF2
100
#EFF9E1
200
#E0F8BE
300
#C9F390
400
#ACED54
500
#8FE718
600
#73B913
700
#5C940F
800
#48740C
900
#36540D
950
#223508

Contrast Checker

Text on white

17.46:1

AA Pass AAA Pass

Text on black

1.2:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026