#406C8E

#406C8E

Color Values

HEX

#406C8E

RGB

64, 108, 142

HSL

206.2, 37.9%, 40.4%

HSV

206.2, 54.9%, 55.7%

CMYK

54.9%, 23.9%, 0.0%, 44.3%

OKLCH

0.5141 0.073 243.2

Properties

Cool Dark Nearest: steelblue 4

Color Harmonies

Complementary

#406C8E

#8E6240

Analogous

#408E89

#40458E

#406C8E

Triadic

#406C8E

#8E406C

#6C8E40

Split Complementary

#406C8E

#8E4045

#8E8940

Tetradic

#406C8E

#89408E

#8E6240

#458E40

Color Blindness Simulation

Original

#406C8E

Protanopia

#535386

Deuteranopia

#504D84

Tritanopia

#427F7E

Achromatopsia

#656565

CSS Usage

background-color: #406C8E;
color: #406C8E;
border-color: #406C8E;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F8FA
100
#E7EEF3
200
#CEDDE9
300
#ABC5D9
400
#7DA5C4
500
#4F86B0
600
#3F6B8D
700
#335671
800
#284358
900
#203341
950
#142029

Contrast Checker

Text on white

5.59:1

AA Pass AAA Fail

Text on black

3.75:1

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