#3375cc

Mariner

Closest match (96% match)

Color formats

RGB

rgb(51, 117, 204)

Red, Green, Blue components

HSL

hsl(214, 60%, 50%)

Hue, Saturation, Lightness

CMYK

cmyk(75, 43, 0, 20)

Print color encoding

Luminance

0.178

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3375cc

#cc8a33

Analogous (Adjacent)

#33c1cc

#3375cc

#3d33cc

Triadic

#3375cc

#cc3375

#75cc33

Split complementary

#3375cc

#cc3d33

#c2cc33

Complete conversion table

HEX

#3375CC

RGB

rgb(51,117,204)

RGBA

rgba(51,117,204, 1)

HSL

hsl(214.12,60%,50%)

OKLCH (Modern CSS)

oklch(0.56 0.15 256.5)

CSS Variable

--color: #3375cc;

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

4.61

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.56

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3375cc#9b9ccc

ORIG

SIM

Deuteranopia (green)

#3375cc#6b61cc

ORIG

SIM

Tritanopia (blue)

#3375cc#364d56

ORIG

SIM

Monochrome (color blind)

#3375cc#757575

Mixing guide

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

MIXING PALETTE

89%

11%

RYB PIGMENTS

Ultramarine blue

Pigment

89%

Cadmium yellow

Pigment

11%

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)

17.8%

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.

Fading Night

#3377CC

Campanula

#3473B7

Mykonos

#387ABE

Matt Blue

#2C6FBB

Brandy Punch

#CC8A33

Governor Bay

#3D33CC

Scooter

#33C1CC

Medium Red Violet

#CC3375

Atlantis

#75CC33

Persian Red

#CC3E33

Malibu

#7AADFF

Congress Blue

#004291