#3F47A2

#3F47A2

Color Values

HEX

#3F47A2

RGB

63, 71, 162

HSL

235.2, 44.0%, 44.1%

HSV

235.2, 61.1%, 63.5%

CMYK

61.1%, 56.2%, 0.0%, 36.5%

OKLCH

0.4439 0.1453 275.0

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#3F47A2

#A29A3F

Analogous

#3F78A2

#693FA2

#3F47A2

Triadic

#3F47A2

#A23F47

#47A23F

Split Complementary

#3F47A2

#A2693F

#78A23F

Tetradic

#3F47A2

#A23F78

#A29A3F

#3FA269

Color Blindness Simulation

Original

#3F47A2

Protanopia

#42438C

Deuteranopia

#424187

Tritanopia

#3F7B77

Achromatopsia

#4C4C4C

CSS Usage

background-color: #3F47A2;
color: #3F47A2;
border-color: #3F47A2;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F5FA
100
#E6E8F4
200
#CCCEEB
300
#A7ABDD
400
#777ECA
500
#4750B8
600
#394093
700
#2E3376
800
#24285C
900
#1D2044
950
#12142B

Contrast Checker

Text on white

7.97:1

AA Pass AAA Pass

Text on black

2.63:1

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