#182338

#182338

Color Values

HEX

#182338

RGB

24, 35, 56

HSL

219.4, 40.0%, 15.7%

HSV

219.4, 57.1%, 22.0%

CMYK

57.1%, 37.5%, 0.0%, 78.0%

OKLCH

0.2569 0.0428 262.6

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#182338

#382D18

Analogous

#183338

#1D1838

#182338

Triadic

#182338

#381823

#233818

Split Complementary

#182338

#381D18

#333818

Tetradic

#182338

#381833

#382D18

#18381D

Color Blindness Simulation

Original

#182338

Protanopia

#1D1D33

Deuteranopia

#1C1B32

Tritanopia

#192F2E

Achromatopsia

#222222

CSS Usage

background-color: #182338;
color: #182338;
border-color: #182338;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F7FA
100
#E7EBF3
200
#CDD7EA
300
#A9BADA
400
#7B95C6
500
#4C70B2
600
#3D598F
700
#314772
800
#263859
900
#1F2B42
950
#141B2A

Contrast Checker

Text on white

15.71:1

AA Pass AAA Pass

Text on black

1.34:1

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