#3575ee

Royal Blue

Closest match (95% match)

Color formats

RGB

rgb(53, 117, 238)

Red, Green, Blue components

HSL

hsl(219, 84%, 57%)

Hue, Saturation, Lightness

CMYK

cmyk(78, 51, 0, 7)

Print color encoding

Luminance

0.197

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3575ee

#eeae35

Analogous (Adjacent)

#35d2ee

#3575ee

#5135ee

Triadic

#3575ee

#ee3575

#75ee35

Split complementary

#3575ee

#ee5135

#d2ee35

Complete conversion table

HEX

#3575EE

RGB

rgb(53,117,238)

RGBA

rgba(53,117,238, 1)

HSL

hsl(219.24,84.47%,57.06%)

OKLCH (Modern CSS)

oklch(0.59 0.19 261.6)

CSS Variable

--color: #3575ee;

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

4.26

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.93

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3575ee#aaabee

ORIG

SIM

Deuteranopia (green)

#3575ee#796cee

ORIG

SIM

Tritanopia (blue)

#3575ee#384e57

ORIG

SIM

Monochrome (color blind)

#3575ee#767995

Mixing guide

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

MIXING PALETTE

76%

16%

RYB PIGMENTS

Ultramarine blue

Pigment

76%

Titanium white

Pigment

16%

Cadmium yellow

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)

19.7%

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.

Deep Sky Blue

#0D75F8

Hadfield Blue

#1177FF

Serenity’s Reign

#507BCE

Azure

#007FFF

Tulip Tree

#EEAE35

Royal Blue

#5135EE

Picton Blue

#35D2EE

Violet Red

#EE3575

Inch Worm

#75EE35

Flamingo

#EE5135

Malibu

#83ADFF

Cobalt

#0042B1