#123531

#123531

Color Values

HEX

#123531

RGB

18, 53, 49

HSL

173.1, 49.3%, 13.9%

HSV

173.1, 66.0%, 20.8%

CMYK

66.0%, 0.0%, 7.5%, 79.2%

OKLCH

0.302 0.041 185.1

Properties

Cool Dark Nearest: RAL 6036 Pearl Opal Green

Color Harmonies

Complementary

#123531

#351216

Analogous

#12351F

#122735

#123531

Triadic

#123531

#311235

#353112

Split Complementary

#123531

#351227

#351F12

Tetradic

#123531

#1F1235

#351216

#273512

Color Blindness Simulation

Original

#123531

Protanopia

#212132

Deuteranopia

#1F1C32

Tritanopia

#143333

Achromatopsia

#2D2D2D

CSS Usage

background-color: #123531;
color: #123531;
border-color: #123531;
Nearest Tailwind: Teal 950 #042F2E

Tailwind Shades

50
#F4FBFA
100
#E6F5F3
200
#CAEDE9
300
#A4E0D9
400
#72CFC4
500
#41BEB0
600
#34988D
700
#297A71
800
#205F58
900
#1B4641
950
#112C29

Contrast Checker

Text on white

13.3:1

AA Pass AAA Pass

Text on black

1.58:1

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