#121E45

#121E45

Color Values

HEX

#121E45

RGB

18, 30, 69

HSL

225.9, 58.6%, 17.1%

HSV

225.9, 73.9%, 27.1%

CMYK

73.9%, 56.5%, 0.0%, 72.9%

OKLCH

0.2495 0.0751 267.8

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#121E45

#453912

Analogous

#123845

#201245

#121E45

Triadic

#121E45

#45121E

#1E4512

Split Complementary

#121E45

#452012

#384512

Tetradic

#121E45

#451238

#453912

#124520

Color Blindness Simulation

Original

#121E45

Protanopia

#17173C

Deuteranopia

#161639

Tritanopia

#133432

Achromatopsia

#1E1E1E

CSS Usage

background-color: #121E45;
color: #121E45;
border-color: #121E45;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FB
100
#E4E8F6
200
#C6D0F0
300
#9EAFE6
400
#6983D8
500
#3558CA
600
#2A46A2
700
#223881
800
#1A2C65
900
#17234A
950
#0E162F

Contrast Checker

Text on white

16.19:1

AA Pass AAA Pass

Text on black

1.3:1

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