#2a45c1

Cerulean Blue

Closest match (96% match)

Color formats

RGB

rgb(42, 69, 193)

Red, Green, Blue components

HSL

hsl(229, 64%, 46%)

Hue, Saturation, Lightness

CMYK

cmyk(78, 64, 0, 24)

Print color encoding

Luminance

0.086

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#2a45c1

#c1a62a

Analogous (Adjacent)

#2a90c1

#2a45c1

#5b2ac1

Triadic

#2a45c1

#c12a45

#45c12a

Split complementary

#2a45c1

#c15b2a

#91c12a

Complete conversion table

HEX

#2A45C1

RGB

rgb(42,69,193)

RGBA

rgba(42,69,193, 1)

HSL

hsl(229.27,64.26%,46.08%)

OKLCH (Modern CSS)

oklch(0.46 0.20 267.8)

CSS Variable

--color: #2a45c1;

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

7.72

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.72

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#2a45c1#7c7dc1

ORIG

SIM

Deuteranopia (green)

#2a45c1#6157c1

ORIG

SIM

Tritanopia (blue)

#2a45c1#2b3238

ORIG

SIM

Monochrome (color blind)

#2a45c1#534f72

Mixing guide

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

MIXING PALETTE

84%

12%

RYB PIGMENTS

Ultramarine blue

Pigment

84%

Ivory black

Pigment

12%

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)

8.6%

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.

Denim

#2243B6

Once in a Blue Moon

#0044BB

Flying Fish Blue

#024ACA

Sapphire Glitter

#0033CC

Hokey Pokey

#C1A62A

Purple Heart

#5B2AC1

Curious Blue

#2A91C1

Brick Red

#C12A45

Apple

#45C12A

Tuscany

#C15B2A

Cornflower Blue

#7579FF

Resolution Blue

#001886