#3F3FB3

#3F3FB3

Color Values

HEX

#3F3FB3

RGB

63, 63, 179

HSL

240.0, 47.9%, 47.5%

HSV

240.0, 64.8%, 70.2%

CMYK

64.8%, 64.8%, 0.0%, 29.8%

OKLCH

0.4434 0.1788 276.3

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#3F3FB3

#B3B33F

Analogous

#3F79B3

#793FB3

#3F3FB3

Triadic

#3F3FB3

#B33F3F

#3FB33F

Split Complementary

#3F3FB3

#B3793F

#79B33F

Tetradic

#3F3FB3

#B33F79

#B3B33F

#3FB379

Color Blindness Simulation

Original

#3F3FB3

Protanopia

#3F3F97

Deuteranopia

#3F3F90

Tritanopia

#3F817C

Achromatopsia

#474747

CSS Usage

background-color: #3F3FB3;
color: #3F3FB3;
border-color: #3F3FB3;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CACAEC
300
#A4A4DF
400
#7373CE
500
#4242BD
600
#353597
700
#2B2B79
800
#21215E
900
#1C1C45
950
#11112C

Contrast Checker

Text on white

8.16:1

AA Pass AAA Pass

Text on black

2.57:1

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