#3123B2

#3123B2

Color Values

HEX

#3123B2

RGB

49, 35, 178

HSL

245.9, 67.1%, 41.8%

HSV

245.9, 80.3%, 69.8%

CMYK

72.5%, 80.3%, 0.0%, 30.2%

OKLCH

0.3923 0.2097 275.1

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#3123B2

#A4B223

Analogous

#235DB2

#7923B2

#3123B2

Triadic

#3123B2

#B23123

#23B231

Split Complementary

#3123B2

#B27923

#5DB223

Tetradic

#3123B2

#B2235D

#A4B223

#23B279

Color Blindness Simulation

Original

#3123B2

Protanopia

#2B2B8F

Deuteranopia

#2C2D87

Tritanopia

#30746E

Achromatopsia

#303030

CSS Usage

background-color: #3123B2;
color: #3123B2;
border-color: #3123B2;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F4F3FC
100
#E5E3F7
200
#C8C3F3
300
#A199EB
400
#6E61E0
500
#3B2AD5
600
#2F22AA
700
#261B88
800
#1D156B
900
#19134E
950
#100C31

Contrast Checker

Text on white

10.43:1

AA Pass AAA Pass

Text on black

2.01:1

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