#2123B6

#2123B6

Color Values

HEX

#2123B6

RGB

33, 35, 182

HSL

239.2, 69.3%, 42.2%

HSV

239.2, 81.9%, 71.4%

CMYK

81.9%, 80.8%, 0.0%, 28.6%

OKLCH

0.3878 0.2184 269.7

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#2123B6

#B6B421

Analogous

#216EB6

#6A21B6

#2123B6

Triadic

#2123B6

#B62123

#23B621

Split Complementary

#2123B6

#B66A21

#6EB621

Tetradic

#2123B6

#B6216E

#B6B421

#21B66A

Color Blindness Simulation

Original

#2123B6

Protanopia

#222292

Deuteranopia

#22228A

Tritanopia

#217670

Achromatopsia

#2D2D2D

CSS Usage

background-color: #2123B6;
color: #2123B6;
border-color: #2123B6;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F3F3FC
100
#E3E3F8
200
#C3C3F4
300
#9799EC
400
#5F61E2
500
#2729D8
600
#1F21AD
700
#191B8A
800
#14156C
900
#12134F
950
#0C0C32

Contrast Checker

Text on white

10.6:1

AA Pass AAA Pass

Text on black

1.98:1

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