#12428F

#12428F

Color Values

HEX

#12428F

RGB

18, 66, 143

HSL

217.0, 77.6%, 31.6%

HSV

217.0, 87.4%, 56.1%

CMYK

87.4%, 53.8%, 0.0%, 43.9%

OKLCH

0.3967 0.1376 259.9

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#12428F

#8F5F12

Analogous

#12818F

#21128F

#12428F

Triadic

#12428F

#8F1242

#428F12

Split Complementary

#12428F

#8F2112

#818F12

Tetradic

#12428F

#8F1281

#8F5F12

#128F21

Color Blindness Simulation

Original

#12428F

Protanopia

#27277C

Deuteranopia

#242078

Tritanopia

#146E6A

Achromatopsia

#3D3D3D

CSS Usage

background-color: #12428F;
color: #12428F;
border-color: #12428F;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F2F6FC
100
#E1EAF9
200
#C0D5F7
300
#92B7F1
400
#5790EA
500
#1D68E2
600
#1754B5
700
#124391
800
#0E3471
900
#0F2952
950
#091A34

Contrast Checker

Text on white

9.54:1

AA Pass AAA Pass

Text on black

2.2:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026