#3F418E

#3F418E

Color Values

HEX

#3F418E

RGB

63, 65, 142

HSL

238.5, 38.5%, 40.2%

HSV

238.5, 55.6%, 55.7%

CMYK

55.6%, 54.2%, 0.0%, 44.3%

OKLCH

0.4168 0.1248 278.4

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F418E

#8E8C3F

Analogous

#3F688E

#653F8E

#3F418E

Triadic

#3F418E

#8E3F41

#418E3F

Split Complementary

#3F418E

#8E653F

#688E3F

Tetradic

#3F418E

#8E3F68

#8E8C3F

#3F8E65

Color Blindness Simulation

Original

#3F418E

Protanopia

#40407B

Deuteranopia

#404077

Tritanopia

#3F6D69

Achromatopsia

#464646

CSS Usage

background-color: #3F418E;
color: #3F418E;
border-color: #3F418E;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CECEE9
300
#AAABD9
400
#7C7EC5
500
#4E51B1
600
#3F418D
700
#323471
800
#272858
900
#202141
950
#141529

Contrast Checker

Text on white

8.91:1

AA Pass AAA Pass

Text on black

2.36:1

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