#3F397C

#3F397C

Color Values

HEX

#3F397C

RGB

63, 57, 124

HSL

245,4, 37,0%, 35,5%

HSV

245,4, 54,0%, 48,6%

CMYK

49,2%, 54,0%, 0,0%, 51,4%

OKLCH

0,3876 0,1099 284,1

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F397C

#767C39

Analogous

#39547C

#61397C

#3F397C

Triadic

#3F397C

#7C3F39

#397C3F

Split Complementary

#3F397C

#7C6139

#547C39

Tetradic

#3F397C

#7C3954

#767C39

#397C61

Color Blindness Simulation

Original

#3F397C

Protanopia

#3C3C6C

Deuteranopia

#3D3D68

Tritanopia

#3F5F5C

Achromatopsia

#3F3F3F

CSS Usage

background-color: #3F397C;
color: #3F397C;
border-color: #3F397C;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E9E8F3
200
#D0CEE9
300
#AFABD8
400
#847EC4
500
#5950AF
600
#47408C
700
#393370
800
#2C2857
900
#232041
950
#161429

Contrast Checker

Text on white

10,06:1

AA Pass AAA Pass

Text on black

2,09:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026