#123D3F

#123D3F

Color Values

HEX

#123D3F

RGB

18, 61, 63

HSL

182.7, 55.6%, 15.9%

HSV

182.7, 71.4%, 24.7%

CMYK

71.4%, 3.2%, 0.0%, 75.3%

OKLCH

0.3317 0.0465 199.5

Properties

Cool Dark Nearest: RAL 6036 Pearl Opal Green

Color Harmonies

Complementary

#123D3F

#3F1412

Analogous

#123F2B

#12273F

#123D3F

Triadic

#123D3F

#3F123D

#3D3F12

Split Complementary

#123D3F

#3F1227

#3F2B12

Tetradic

#123D3F

#2B123F

#3F1412

#273F12

Color Blindness Simulation

Original

#123D3F

Protanopia

#25253F

Deuteranopia

#221F3E

Tritanopia

#143E3E

Achromatopsia

#343434

CSS Usage

background-color: #123D3F;
color: #123D3F;
border-color: #123D3F;
Nearest Tailwind: Teal 950 #042F2E

Tailwind Shades

50
#F4FBFB
100
#E5F5F6
200
#C7EDEF
300
#A0E1E4
400
#6CD0D5
500
#39C0C6
600
#2D9A9F
700
#247B7F
800
#1C6063
900
#184749
950
#0F2D2E

Contrast Checker

Text on white

11.9:1

AA Pass AAA Pass

Text on black

1.76:1

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