#183eac

Persian Blue

Closest match (97% match)

Color formats

RGB

rgb(24, 62, 172)

Red, Green, Blue components

HSL

hsl(225, 76%, 38%)

Hue, Saturation, Lightness

CMYK

cmyk(86, 64, 0, 33)

Print color encoding

Luminance

0.066

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#183eac

#ac8618

Analogous (Adjacent)

#1888ac

#183eac

#3c18ac

Triadic

#183eac

#ac183e

#3eac18

Split complementary

#183eac

#ac3c18

#88ac18

Complete conversion table

HEX

#183EAC

RGB

rgb(24,62,172)

RGBA

rgba(24,62,172, 1)

HSL

hsl(224.59,75.51%,38.43%)

OKLCH (Modern CSS)

oklch(0.42 0.18 264.7)

CSS Variable

--color: #183eac;

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

9.04

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.32

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#183eac#6e70ac

ORIG

SIM

Deuteranopia (green)

#183eac#4f44ac

ORIG

SIM

Tritanopia (blue)

#183eac#1a272c

ORIG

SIM

Monochrome (color blind)

#183eac#48465e

Mixing guide

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

MIXING PALETTE

67%

29%

RYB PIGMENTS

Ultramarine blue

Pigment

67%

Ivory black

Pigment

29%

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)

6.6%

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

Blue Hour

#0034AB

Blue Screen of Death

#0033BB

Mandalay

#AC8618

Blue Gem

#3C18AC

Eastern Blue

#1888AC

Cardinal

#AC183E

Vida Loca

#3EAC18

Cognac

#AC3C18

Cornflower Blue

#6771E9

Navy Blue

#001372