#3F3457

#3F3457

Color Values

HEX

#3F3457

RGB

63, 52, 87

HSL

258.9, 25.2%, 27.3%

HSV

258.9, 40.2%, 34.1%

CMYK

27.6%, 40.2%, 0.0%, 65.9%

OKLCH

0.353 0.0608 297.7

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#3F3457

#4C5734

Analogous

#343B57

#513457

#3F3457

Triadic

#3F3457

#573F34

#34573F

Split Complementary

#3F3457

#575134

#3B5734

Tetradic

#3F3457

#57343B

#4C5734

#345751

Color Blindness Simulation

Original

#3F3457

Protanopia

#3A3A4F

Deuteranopia

#3B3C4C

Tritanopia

#3E4846

Achromatopsia

#393939

CSS Usage

background-color: #3F3457;
color: #3F3457;
border-color: #3F3457;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F7F6F9
100
#ECE9F1
200
#D8D2E4
300
#BCB2D1
400
#9889B8
500
#745FA0
600
#5C4C80
700
#4A3D66
800
#3A3050
900
#2C253B
950
#1C1826

Contrast Checker

Text on white

11.41:1

AA Pass AAA Pass

Text on black

1.84:1

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