#405C66

#405C66

Color Values

HEX

#405C66

RGB

64, 92, 102

HSL

195.8, 22.9%, 32.5%

HSV

195.8, 37.3%, 40.0%

CMYK

37.3%, 9.8%, 0.0%, 60.0%

OKLCH

0.4565 0.037 222.1

Properties

Cool Dark Nearest: darkslategrey

Color Harmonies

Complementary

#405C66

#664A40

Analogous

#40665D

#404966

#405C66

Triadic

#405C66

#66405C

#5C6640

Split Complementary

#405C66

#664049

#665D40

Tetradic

#405C66

#5D4066

#664A40

#496640

Color Blindness Simulation

Original

#405C66

Protanopia

#4C4C64

Deuteranopia

#4A4863

Tritanopia

#416261

Achromatopsia

#575757

CSS Usage

background-color: #405C66;
color: #405C66;
border-color: #405C66;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F8F9
100
#EAEFF1
200
#D3DFE3
300
#B4C8D0
400
#8BABB6
500
#628D9D
600
#4F717D
700
#3F5A64
800
#31474E
900
#26353A
950
#182225

Contrast Checker

Text on white

7.14:1

AA Pass AAA Pass

Text on black

2.94:1

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