#2A3178

#2A3178

Color Values

HEX

#2A3178

RGB

42, 49, 120

HSL

234.6, 48.1%, 31.8%

HSV

234.6, 65.0%, 47.1%

CMYK

65.0%, 59.2%, 0.0%, 52.9%

OKLCH

0.3516 0.12 274.2

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#2A3178

#78712A

Analogous

#2A5878

#4A2A78

#2A3178

Triadic

#2A3178

#782A31

#31782A

Split Complementary

#2A3178

#784A2A

#58782A

Tetradic

#2A3178

#782A58

#78712A

#2A784A

Color Blindness Simulation

Original

#2A3178

Protanopia

#2D2D67

Deuteranopia

#2D2C63

Tritanopia

#2A5956

Achromatopsia

#353535

CSS Usage

background-color: #2A3178;
color: #2A3178;
border-color: #2A3178;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CACDEC
300
#A4AADF
400
#737BCE
500
#424DBD
600
#353E97
700
#2A3179
800
#21275E
900
#1B1F45
950
#11142C

Contrast Checker

Text on white

11.61:1

AA Pass AAA Pass

Text on black

1.81:1

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