#12234B

#12234B

Color Values

HEX

#12234B

RGB

18, 35, 75

HSL

222.1, 61.3%, 18.2%

HSV

222.1, 76.0%, 29.4%

CMYK

76.0%, 53.3%, 0.0%, 70.6%

OKLCH

0.267 0.0776 264.4

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#12234B

#4B3A12

Analogous

#123F4B

#1D124B

#12234B

Triadic

#12234B

#4B1223

#234B12

Split Complementary

#12234B

#4B1D12

#3F4B12

Tetradic

#12234B

#4B123F

#4B3A12

#124B1D

Color Blindness Simulation

Original

#12234B

Protanopia

#191A41

Deuteranopia

#18173F

Tritanopia

#133A38

Achromatopsia

#222222

CSS Usage

background-color: #12234B;
color: #12234B;
border-color: #12234B;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F3F6FB
100
#E4E9F6
200
#C5D2F1
300
#9CB3E7
400
#6789DA
500
#3160CE
600
#274DA5
700
#203D84
800
#193067
900
#16264B
950
#0E182F

Contrast Checker

Text on white

15.35:1

AA Pass AAA Pass

Text on black

1.37:1

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