#3374bc

Astral

Closest match (91% match)

Color formats

RGB

rgb(51, 116, 188)

Red, Green, Blue components

HSL

hsl(212, 57%, 47%)

Hue, Saturation, Lightness

CMYK

cmyk(73, 38, 0, 26)

Print color encoding

Luminance

0.168

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3374bc

#bc7b33

Analogous (Adjacent)

#33b9bc

#3374bc

#3633bc

Triadic

#3374bc

#bc3374

#74bc33

Split complementary

#3374bc

#bc3633

#b9bc33

Complete conversion table

HEX

#3374BC

RGB

rgb(51,116,188)

RGBA

rgba(51,116,188, 1)

HSL

hsl(211.53,57.32%,46.86%)

OKLCH (Modern CSS)

oklch(0.55 0.13 253.2)

CSS Variable

--color: #3374bc;

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

4.81

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.37

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3374bc#9494bc

ORIG

SIM

Deuteranopia (green)

#3374bc#655cbc

ORIG

SIM

Tritanopia (blue)

#3374bc#364c55

ORIG

SIM

Monochrome (color blind)

#3374bc#727272

Mixing guide

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

MIXING PALETTE

79%

11%

10%

RYB PIGMENTS

Ultramarine blue

Pigment

79%

Cadmium yellow

Pigment

11%

Ivory black

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)

16.8%

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.

Campanula

#3473B7

Matt Blue

#2C6FBB

Sail On

#4575AD

Blue Triumph

#4376AB

Copper

#BC7B33

Governor Bay

#3633BC

Pelorous

#33B9BC

Hibiscus

#BC3374

Sushi

#74BC33

Well Read

#BC3633

Malibu

#77ACF9

Congress Blue

#004182