#3F5678

#3F5678

Color Values

HEX

#3F5678

RGB

63, 86, 120

HSL

215.8, 31.1%, 35.9%

HSV

215.8, 47.5%, 47.1%

CMYK

47.5%, 28.3%, 0.0%, 52.9%

OKLCH

0.4495 0.0629 258.0

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F5678

#78613F

Analogous

#3F7378

#453F78

#3F5678

Triadic

#3F5678

#783F56

#56783F

Split Complementary

#3F5678

#78453F

#73783F

Tetradic

#3F5678

#783F73

#78613F

#3F7845

Color Blindness Simulation

Original

#3F5678

Protanopia

#494970

Deuteranopia

#48466E

Tritanopia

#406968

Achromatopsia

#545454

CSS Usage

background-color: #3F5678;
color: #3F5678;
border-color: #3F5678;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F5F7F9
100
#E8ECF2
200
#D0D9E6
300
#AFBED5
400
#839BBE
500
#5878A7
600
#466086
700
#384D6B
800
#2C3C54
900
#232E3E
950
#161D27

Contrast Checker

Text on white

7.46:1

AA Pass AAA Pass

Text on black

2.81:1

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