#004e8b

Congress Blue

Closest match (97% match)

Color formats

RGB

rgb(0, 78, 139)

Red, Green, Blue components

HSL

hsl(206, 100%, 27%)

Hue, Saturation, Lightness

CMYK

cmyk(100, 44, 0, 45)

Print color encoding

Luminance

0.073

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#004e8b

#8b3d00

Analogous (Adjacent)

#008b83

#004e8b

#00088b

Triadic

#004e8b

#8b004e

#4e8b00

Split complementary

#004e8b

#8b0008

#8b8200

Complete conversion table

HEX

#004E8B

RGB

rgb(0,78,139)

RGBA

rgba(0,78,139, 1)

HSL

hsl(206.33,100%,27.25%)

OKLCH (Modern CSS)

oklch(0.42 0.12 250.6)

CSS Variable

--color: #004e8b;

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

8.53

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.46

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#004e8b#69698b

ORIG

SIM

Deuteranopia (green)

#004e8b#332a8b

ORIG

SIM

Tritanopia (blue)

#004e8b#042529

ORIG

SIM

Monochrome (color blind)

#004e8b#4c4c4c

Mixing guide

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

MIXING PALETTE

47%

45%

RYB PIGMENTS

Ultramarine blue

Pigment

47%

Ivory black

Pigment

45%

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)

7.3%

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.

Night Mode

#234E86

Olympian Blue

#1C4C8C

Dancing Sea

#1C4D8F

Dark Denim

#005588

Peru Tan

#8B3D00

Navy Blue

#00088B

Teal

#008B83

Siren

#8B004E

Limeade

#4E8B00

Sangria

#8B0008

Indigo

#5483C5

Prussian Blue

#002054