#123C57

#123C57

Color Values

HEX

#123C57

RGB

18, 60, 87

HSL

203.5, 65.7%, 20.6%

HSV

203.5, 79.3%, 34.1%

CMYK

79.3%, 31.0%, 0.0%, 65.9%

OKLCH

0.3413 0.0658 241.0

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#123C57

#572D12

Analogous

#125750

#121957

#123C57

Triadic

#123C57

#57123C

#3C5712

Split Complementary

#123C57

#571219

#575012

Tetradic

#123C57

#501257

#572D12

#195712

Color Blindness Simulation

Original

#123C57

Protanopia

#242550

Deuteranopia

#221F4F

Tritanopia

#144B4A

Achromatopsia

#353535

CSS Usage

background-color: #123C57;
color: #123C57;
border-color: #123C57;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F3F8FC
100
#E3EFF7
200
#C4E0F3
300
#9ACBEA
400
#63AEDF
500
#2C92D3
600
#2375A9
700
#1C5D87
800
#16496A
900
#14374D
950
#0D2331

Contrast Checker

Text on white

11.6:1

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