#644dda

Royal Blue

Closest match (89% match)

Color formats

RGB

rgb(100, 77, 218)

Red, Green, Blue components

HSL

hsl(250, 66%, 58%)

Hue, Saturation, Lightness

CMYK

cmyk(54, 65, 0, 15)

Print color encoding

Luminance

0.131

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#644dda

#c3da4d

Analogous (Adjacent)

#4d7cda

#644dda

#ab4dda

Triadic

#644dda

#da644d

#4dda64

Split complementary

#644dda

#daab4d

#7dda4d

Complete conversion table

HEX

#644DDA

RGB

rgb(100,77,218)

RGBA

rgba(100,77,218, 1)

HSL

hsl(249.79,65.58%,57.84%)

OKLCH (Modern CSS)

oklch(0.53 0.21 284.3)

CSS Variable

--color: #644dda;

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

5.81

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

3.62

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#644dda#8b8cda

ORIG

SIM

Deuteranopia (green)

#644dda#8f87da

ORIG

SIM

Tritanopia (blue)

#644dda#634f58

ORIG

SIM

Monochrome (color blind)

#644dda#6c5e8e

Mixing guide

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

MIXING PALETTE

67%

21%

12%

RYB PIGMENTS

Ultramarine blue

Pigment

67%

Titanium white

Pigment

21%

Cadmium red

Pigment

12%

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)

13.1%

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.

Purple Rain

#7442C8

Candy Grape Fizz

#7755EE

Warm Blue

#4B57DB

Hokkaido Lavender

#7736D9

Conifer

#C3DA4D

Medium Purple

#AB4DDA

Havelock Blue

#4D7CDA

Red Damask

#DA644D

Emerald

#4DDA64

Anzac

#DAAB4D

Heliotrope

#A584FF

Torea Bay

#121A9D