#3F33B0

#3F33B0

Color Values

HEX

#3F33B0

RGB

63, 51, 176

HSL

245.8, 55.1%, 44.5%

HSV

245.8, 71.0%, 69.0%

CMYK

64.2%, 71.0%, 0.0%, 31.0%

OKLCH

0.4215 0.1888 278.8

Properties

Cool Dark Nearest: Purple Heart

Color Harmonies

Complementary

#3F33B0

#A4B033

Analogous

#3365B0

#7E33B0

#3F33B0

Triadic

#3F33B0

#B03F33

#33B03F

Split Complementary

#3F33B0

#B07E33

#65B033

Tetradic

#3F33B0

#B03365

#A4B033

#33B07E

Color Blindness Simulation

Original

#3F33B0

Protanopia

#3A3A92

Deuteranopia

#3A3B8A

Tritanopia

#3E7A75

Achromatopsia

#3F3F3F

CSS Usage

background-color: #3F33B0;
color: #3F33B0;
border-color: #3F33B0;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E6E5F6
200
#CBC8EF
300
#A7A0E4
400
#776DD5
500
#4739C6
600
#392E9E
700
#2D257F
800
#231D63
900
#1D1848
950
#120F2E

Contrast Checker

Text on white

9.08:1

AA Pass AAA Pass

Text on black

2.31:1

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