#3f54bf

Indigo

Closest match (93% match)

Color formats

RGB

rgb(63, 84, 191)

Red, Green, Blue components

HSL

hsl(230, 50%, 50%)

Hue, Saturation, Lightness

CMYK

cmyk(67, 56, 0, 25)

Print color encoding

Luminance

0.112

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3f54bf

#bfaa3f

Analogous (Adjacent)

#3f94bf

#3f54bf

#6a3fbf

Triadic

#3f54bf

#bf3f54

#54bf3f

Split complementary

#3f54bf

#bf6a3f

#94bf3f

Complete conversion table

HEX

#3F54BF

RGB

rgb(63,84,191)

RGBA

rgba(63,84,191, 1)

HSL

hsl(230.16,50.39%,49.8%)

OKLCH (Modern CSS)

oklch(0.49 0.17 270.6)

CSS Variable

--color: #3f54bf;

Preview

Readability and Typography

Headline Test

This text demonstrates the reading experience on this background color.

Headline Test

This text demonstrates the reading experience on this background color.

UI Component Set

This is an example alert bar using the selected color.

SOLIDSOFTOUTLINE

Product Mockup

4582 •••• •••• 9018

CARDHOLDER

JOHN DOE

VALID

12/28

Mobile application

Customer support

Hi! How can we help you today?

I love this new color! 😍

Data visualization

Weekly growth

+1,240

12.5%

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

6.50

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

3.23

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3f54bf#8384bf

ORIG

SIM

Deuteranopia (green)

#3f54bf#6e65bf

ORIG

SIM

Tritanopia (blue)

#3f54bf#40434a

ORIG

SIM

Monochrome (color blind)

#3f54bf#5e5c6e

Mixing guide

How to mix this color using physical paints or printing inks.

MIXING PALETTE

95%

RYB PIGMENTS

Ultramarine blue

Pigment

95%

Cadmium yellow

Pigment

Ivory black

Pigment

Unlike light, mixing paints makes colors darker. This simulation mimics the behavior of physical pigments.

Physical properties

Perceptual and light-related properties derived from the digital color.

Spectral relationship

Blue hue

450–495 nm • closest visible-spectrum range

750 nm

380 nm

Visual temperature

Cool

A perceptual warm–cool classification. Kelvin does not apply to an arbitrary interface color.

Cool

Neutral

Warm

Luminance (brightness)

11.2%

Dark • relative luminance

50%

100%

An RGB color is produced by combined screen light, so this range is a visual comparison rather than an exact physical wavelength.

Gradient gallery

Generate premium CSS backgrounds and textures from your color.

Similar & Related Colors

Mathematically computed harmonies, shades, and similar tones for this color.

Blasphemous Blue

#3356AA

Flying Fish Blue

#024ACA

Warm Blue

#4B57DB

Frosted Blueberries

#0055DD

Roti

#BFAA3F

Studio

#6A3FBF

Boston Blue

#3F94BF

Chestnut

#BF3F54

Apple

#54BF3F

Brown Rust

#BF6A3F

Malibu

#8189FD

Resolution Blue

#002584