#123664

#123664

Color Values

HEX

#123664

RGB

18, 54, 100

HSL

213.7, 69.5%, 23.1%

HSV

213.7, 82.0%, 39.2%

CMYK

82.0%, 46.0%, 0.0%, 60.8%

OKLCH

0.3343 0.0908 256.2

Properties

Cool Dark Nearest: RAL 5026 Pearl Night Blue

Color Harmonies

Complementary

#123664

#644012

Analogous

#125F64

#171264

#123664

Triadic

#123664

#641236

#366412

Split Complementary

#123664

#641712

#5F6412

Tetradic

#123664

#64125F

#644012

#126417

Color Blindness Simulation

Original

#123664

Protanopia

#222259

Deuteranopia

#201D56

Tritanopia

#14504E

Achromatopsia

#323232

CSS Usage

background-color: #123664;
color: #123664;
border-color: #123664;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F3F7FC
100
#E3ECF8
200
#C2D8F4
300
#97BDEC
400
#5F99E2
500
#2775D8
600
#1F5DAD
700
#194B8A
800
#133A6C
900
#122D4F
950
#0B1C32

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