#243b4e

Blue Dianne

Closest match (91% match)

Color formats

RGB

rgb(36, 59, 78)

Red, Green, Blue components

HSL

hsl(207, 37%, 22%)

Hue, Saturation, Lightness

CMYK

cmyk(54, 24, 0, 69)

Print color encoding

Luminance

0.041

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#243b4e

#4e3724

Analogous (Adjacent)

#244e4c

#243b4e

#24264e

Triadic

#243b4e

#4e243b

#3b4e24

Split complementary

#243b4e

#4e2426

#4e4c24

Complete conversion table

HEX

#243B4E

RGB

rgb(36,59,78)

RGBA

rgba(36,59,78, 1)

HSL

hsl(207.14,36.84%,22.35%)

OKLCH (Modern CSS)

oklch(0.34 0.04 244.5)

CSS Variable

--color: #243b4e;

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

11.60

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.81

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#243b4e#43444e

ORIG

SIM

Deuteranopia (green)

#243b4e#33314e

ORIG

SIM

Tritanopia (blue)

#243b4e#252b30

ORIG

SIM

Monochrome (color blind)

#243b4e#393939

Mixing guide

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

MIXING PALETTE

77%

20%

RYB PIGMENTS

Ivory black

Pigment

77%

Ultramarine blue

Pigment

20%

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)

4.1%

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.

Blue Whale

#1E3442

Capital Blue

#1A4157

One Year of Rain

#29465B

Sea of Stars

#0B334D

Saddle

#4E3724

Port Gore

#24264E

Plantation

#244E4C

Livid Brown

#4E243B

Woodland

#3B4E24

Crater Brown

#4E2426

Blue Bayoux

#586E83

Blue Charcoal

#000C1F