#40378d

Minsk

Closest match (97% match)

Color formats

RGB

rgb(64, 55, 141)

Red, Green, Blue components

HSL

hsl(246, 44%, 38%)

Hue, Saturation, Lightness

CMYK

cmyk(55, 61, 0, 45)

Print color encoding

Luminance

0.057

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#40378d

#848d37

Analogous (Adjacent)

#37598d

#40378d

#6b378d

Triadic

#40378d

#8d4037

#378d40

Split complementary

#40378d

#8d6b37

#598d37

Complete conversion table

HEX

#40378D

RGB

rgb(64,55,141)

RGBA

rgba(64,55,141, 1)

HSL

hsl(246.28,43.88%,38.43%)

OKLCH (Modern CSS)

oklch(0.40 0.14 282.9)

CSS Variable

--color: #40378d;

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

9.77

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.15

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#40378d#5d5e8d

ORIG

SIM

Deuteranopia (green)

#40378d#5c578d

ORIG

SIM

Tritanopia (blue)

#40378d#40353b

ORIG

SIM

Monochrome (color blind)

#40378d#444445

Mixing guide

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

MIXING PALETTE

55%

39%

RYB PIGMENTS

Ultramarine blue

Pigment

55%

Ivory black

Pigment

39%

Cadmium red

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)

5.7%

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.

Majestic Eggplant

#443388

Perfect Dark

#313390

Blueberry

#464196

Bluebell

#333399

Sycamore

#848D37

Eminence

#6B378D

Chambray

#37598D

Sanguine Brown

#8D4037

Sea Green

#378D40

Potters Clay

#8D6B37

Blue Marguerite

#7B6AC8

Stratos

#000956