#183B3E

#183B3E

Color Values

HEX

#183B3E

RGB

24, 59, 62

HSL

184.7, 44.2%, 16.9%

HSV

184.7, 61.3%, 24.3%

CMYK

61.3%, 4.8%, 0.0%, 75.7%

OKLCH

0.3279 0.0406 202.9

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#183B3E

#3E1B18

Analogous

#183E2E

#18283E

#183B3E

Triadic

#183B3E

#3E183B

#3B3E18

Split Complementary

#183B3E

#3E1828

#3E2E18

Tetradic

#183B3E

#2E183E

#3E1B18

#283E18

Color Blindness Simulation

Original

#183B3E

Protanopia

#27273D

Deuteranopia

#25223D

Tritanopia

#1A3D3D

Achromatopsia

#343434

CSS Usage

background-color: #183B3E;
color: #183B3E;
border-color: #183B3E;
Nearest Tailwind: Teal 950 #042F2E

Tailwind Shades

50
#F4FAFA
100
#E6F3F4
200
#CCE9EB
300
#A7D9DD
400
#77C4CA
500
#47AFB8
600
#398C93
700
#2E7076
800
#24585C
900
#1D4144
950
#12292B

Contrast Checker

Text on white

12.11:1

AA Pass AAA Pass

Text on black

1.73:1

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