#123243

#123243

Color Values

HEX

#123243

RGB

18, 50, 67

HSL

200.8, 57.6%, 16.7%

HSV

200.8, 73.1%, 26.3%

CMYK

73.1%, 25.4%, 0.0%, 73.7%

OKLCH

0.3018 0.0484 234.8

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#123243

#432312

Analogous

#12433C

#121A43

#123243

Triadic

#123243

#431232

#324312

Split Complementary

#123243

#43121A

#433C12

Tetradic

#123243

#3C1243

#432312

#1A4312

Color Blindness Simulation

Original

#123243

Protanopia

#20203F

Deuteranopia

#1E1C3E

Tritanopia

#143C3B

Achromatopsia

#2C2C2C

CSS Usage

background-color: #123243;
color: #123243;
border-color: #123243;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F4F8FB
100
#E4F0F6
200
#C7E2F0
300
#9FCDE5
400
#6AB1D7
500
#3696C9
600
#2B78A1
700
#236081
800
#1B4B64
900
#17384A
950
#0F232E

Contrast Checker

Text on white

13.44:1

AA Pass AAA Pass

Text on black

1.56:1

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