#3931B5

#3931B5

Color Values

HEX

#3931B5

RGB

57, 49, 181

HSL

243.6, 57.4%, 45.1%

HSV

243.6, 72.9%, 71.0%

CMYK

68.5%, 72.9%, 0.0%, 29.0%

OKLCH

0.4191 0.1984 276.2

Properties

Cool Dark Nearest: Purple Heart

Color Harmonies

Complementary

#3931B5

#ADB531

Analogous

#316BB5

#7B31B5

#3931B5

Triadic

#3931B5

#B53931

#31B539

Split Complementary

#3931B5

#B57B31

#6BB531

Tetradic

#3931B5

#B5316B

#ADB531

#31B57B

Color Blindness Simulation

Original

#3931B5

Protanopia

#363595

Deuteranopia

#36378D

Tritanopia

#397C76

Achromatopsia

#3C3C3C

CSS Usage

background-color: #3931B5;
color: #3931B5;
border-color: #3931B5;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F4F4FB
100
#E5E4F6
200
#C9C7F0
300
#A39FE5
400
#716AD7
500
#3F36C9
600
#322BA1
700
#282380
800
#201B64
900
#1A1749
950
#110F2E

Contrast Checker

Text on white

9.21:1

AA Pass AAA Pass

Text on black

2.28:1

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