#123828

#123828

Color Values

HEX

#123828

RGB

18, 56, 40

HSL

154.7, 51.4%, 14.5%

HSV

154.7, 67.9%, 22.0%

CMYK

67.9%, 0.0%, 28.6%, 78.0%

OKLCH

0.3081 0.0523 162.8

Properties

Cool Dark Nearest: RAL 6005 Moss Green

Color Harmonies

Complementary

#123828

#381222

Analogous

#123815

#123538

#123828

Triadic

#123828

#281238

#382812

Split Complementary

#123828

#381235

#381512

Tetradic

#123828

#151238

#381222

#353812

Color Blindness Simulation

Original

#123828

Protanopia

#22232C

Deuteranopia

#201D2D

Tritanopia

#142F30

Achromatopsia

#2F2F2F

CSS Usage

background-color: #123828;
color: #123828;
border-color: #123828;
Nearest Tailwind: Emerald 950 #022C22

Tailwind Shades

50
#F4FBF8
100
#E5F5EE
200
#C9EEDE
300
#A2E1C7
400
#70D1A8
500
#3EC18A
600
#329A6E
700
#287C58
800
#1F6145
900
#1A4734
950
#102D21

Contrast Checker

Text on white

12.95:1

AA Pass AAA Pass

Text on black

1.62:1

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