#183A48

#183A48

Color Values

HEX

#183A48

RGB

24, 58, 72

HSL

197.5, 50.0%, 18.8%

HSV

197.5, 66.7%, 28.2%

CMYK

66.7%, 19.4%, 0.0%, 71.8%

OKLCH

0.3298 0.0464 227.7

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#183A48

#482618

Analogous

#18483E

#182248

#183A48

Triadic

#183A48

#48183A

#3A4818

Split Complementary

#183A48

#481822

#483E18

Tetradic

#183A48

#3E1848

#482618

#224818

Color Blindness Simulation

Original

#183A48

Protanopia

#272745

Deuteranopia

#252244

Tritanopia

#1A4241

Achromatopsia

#343434

CSS Usage

background-color: #183A48;
color: #183A48;
border-color: #183A48;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F4F9FB
100
#E6F0F5
200
#C9E3ED
300
#A3CFE0
400
#71B4D0
500
#409ABF
600
#337B99
700
#29637A
800
#204D60
900
#1B3A46
950
#11242C

Contrast Checker

Text on white

12.09:1

AA Pass AAA Pass

Text on black

1.74:1

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