#42858C

#42858C

Color Values

HEX

#42858C

RGB

66, 133, 140

HSL

185.7, 35.9%, 40.4%

HSV

185.7, 52.9%, 54.9%

CMYK

52.9%, 5.0%, 0.0%, 45.1%

OKLCH

0.5758 0.0687 204.4

Properties

Cool Light Nearest: RAL 5018 Turquoise Blue

Color Harmonies

Complementary

#42858C

#8C4942

Analogous

#428C6E

#42608C

#42858C

Triadic

#42858C

#8C4285

#858C42

Split Complementary

#42858C

#8C4260

#8C6E42

Tetradic

#42858C

#6E428C

#8C4942

#608C42

Color Blindness Simulation

Original

#42858C

Protanopia

#5F608A

Deuteranopia

#5B568A

Tritanopia

#458989

Achromatopsia

#777777

CSS Usage

background-color: #42858C;
color: #42858C;
border-color: #42858C;
Nearest Tailwind: Teal 700 #0F766E

Tailwind Shades

50
#F5F9FA
100
#E8F2F3
200
#CEE6E8
300
#ACD4D8
400
#7FBCC3
500
#52A5AD
600
#41848B
700
#34696F
800
#295257
900
#213D40
950
#152728

Contrast Checker

Text on white

4.23:1

AA Fail AAA Fail

Text on black

4.97:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026