#3571aa

Astral

Closest match (92% match)

Color formats

RGB

rgb(53, 113, 170)

Red, Green, Blue components

HSL

hsl(209, 52%, 44%)

Hue, Saturation, Lightness

CMYK

cmyk(69, 34, 0, 33)

Print color encoding

Luminance

0.155

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3571aa

#aa6e35

Analogous (Adjacent)

#35aaa9

#3571aa

#3537aa

Triadic

#3571aa

#aa3571

#71aa35

Split complementary

#3571aa

#aa3536

#aaa935

Complete conversion table

HEX

#3571AA

RGB

rgb(53,113,170)

RGBA

rgba(53,113,170, 1)

HSL

hsl(209.23,52.47%,43.73%)

OKLCH (Modern CSS)

oklch(0.54 0.11 249.6)

CSS Variable

--color: #3571aa;

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%

1D

1W

1M

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

5.13

AP

Small text (14pt)

The quick brown fox jumps over...

AA

AAA

Large text or UI (18pt Bold)

AA

AAA

On black background

4.09

AP

Small text (14pt)

The quick brown fox jumps over...

AA

AAA

Large text or UI (18pt Bold)

AA

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3571aa#8a8baa

ORIG

SIM

Deuteranopia (green)

#3571aa#6058aa

ORIG

SIM

Tritanopia (blue)

#3571aa#384c55

ORIG

SIM

Monochrome (color blind)

#3571aa#6e6e6e

Mixing guide

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

MIXING PALETTE

68%

21%

10%

RYB PIGMENTS

Ultramarine blue

Pigment

68%

Ivory black

Pigment

21%

Cadmium yellow

Pigment

10%

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)

15.5%

Dark • relative luminance

0%

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.

Muted Blue

#3B719F

Campanula

#3473B7

Naval

#41729F

Matt Blue

#2C6FBB

Copper

#AA6E35

Governor Bay

#3537AA

Keppel

#35AAA9

Royal Heath

#AA3571

Sushi

#71AA35

Medium Carmine

#AA3536

Portage

#75A9E6

Regal Blue

#003E71


Top tools

WorkspaceLinksySEO AnalyzerChromoQR Code Generator

ReadyTools

CareersContactTools
Pricing7 days free
SupportSecurityGuidesDocsBlogUpdatesLaraVault

Select Language

Set theme

ReadyTools

© 2026 ReadyTools. All rights reserved.