#3F487F

#3F487F

Color Values

HEX

#3F487F

RGB

63, 72, 127

HSL

231.6, 33.7%, 37.3%

HSV

231.6, 50.4%, 49.8%

CMYK

50.4%, 43.3%, 0.0%, 50.2%

OKLCH

0.4212 0.0918 274.8

Properties

Cool Dark Nearest: dodgerblue 4

Color Harmonies

Complementary

#3F487F

#7F763F

Analogous

#3F687F

#563F7F

#3F487F

Triadic

#3F487F

#7F3F48

#487F3F

Split Complementary

#3F487F

#7F563F

#687F3F

Tetradic

#3F487F

#7F3F68

#7F763F

#3F7F56

Color Blindness Simulation

Original

#3F487F

Protanopia

#434372

Deuteranopia

#42426E

Tritanopia

#3F6765

Achromatopsia

#4A4A4A

CSS Usage

background-color: #3F487F;
color: #3F487F;
border-color: #3F487F;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F6FA
100
#E8E9F2
200
#CFD3E7
300
#ADB3D6
400
#818AC0
500
#5561AA
600
#444D88
700
#363E6D
800
#2A3055
900
#22263F
950
#151828

Contrast Checker

Text on white

8.59:1

AA Pass AAA Pass

Text on black

2.44:1

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