#013a8a

Congress Blue

Closest match (95% match)

Color formats

RGB

rgb(1, 58, 138)

Red, Green, Blue components

HSL

hsl(215, 99%, 27%)

Hue, Saturation, Lightness

CMYK

cmyk(99, 58, 0, 46)

Print color encoding

Luminance

0.049

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#013a8a

#8a5101

Analogous (Adjacent)

#017e8a

#013a8a

#0c018a

Triadic

#013a8a

#8a013a

#3a8a01

Split complementary

#013a8a

#8a0c01

#7f8a01

Complete conversion table

HEX

#013A8A

RGB

rgb(1,58,138)

RGBA

rgba(1,58,138, 1)

HSL

hsl(215.04,98.56%,27.25%)

OKLCH (Modern CSS)

oklch(0.37 0.14 259.2)

CSS Variable

--color: #013a8a;

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

10.64

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.97

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#013a8a#5d5e8a

ORIG

SIM

Deuteranopia (green)

#013a8a#342a8a

ORIG

SIM

Tritanopia (blue)

#013a8a#041c1f

ORIG

SIM

Monochrome (color blind)

#013a8a#3e3e3e

Mixing guide

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

MIXING PALETTE

49%

46%

RYB PIGMENTS

Ultramarine blue

Pigment

49%

Ivory black

Pigment

46%

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)

4.9%

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.

One Minute to Midnight

#003388

Pacific Depths

#004488

Twilight Express

#1C3378

Below the Surface

#0A2F7C

Brown

#8A5101

Navy Blue

#0C018A

Blue Lagoon

#017E8A

Siren

#8A013A

Limeade

#3A8A01

Red Berry

#8A0D01

Indigo

#556CC5

Stratos

#000E53