#001740

Midnight

Closest match (97% match)

Color formats

RGB

rgb(0, 23, 64)

Red, Green, Blue components

HSL

hsl(218, 100%, 13%)

Hue, Saturation, Lightness

CMYK

cmyk(100, 64, 0, 75)

Print color encoding

Luminance

0.010

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#001740

#402900

Analogous (Adjacent)

#003740

#001740

#090040

Triadic

#001740

#400017

#174000

Split complementary

#001740

#400900

#374000

Complete conversion table

HEX

#001740

RGB

rgb(0,23,64)

RGBA

rgba(0,23,64, 1)

HSL

hsl(218.44,100%,12.55%)

OKLCH (Modern CSS)

oklch(0.22 0.08 259.0)

CSS Variable

--color: #001740;

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

17.55

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.20

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#001740#292940

ORIG

SIM

Deuteranopia (green)

#001740#181340

ORIG

SIM

Tritanopia (blue)

#001740#010b0c

ORIG

SIM

Monochrome (color blind)

#001740#191919

Mixing guide

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

MIXING PALETTE

75%

23%

RYB PIGMENTS

Ivory black

Pigment

75%

Ultramarine blue

Pigment

23%

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)

1.0%

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.

Infinite Night

#071037

Dark Eclipse

#112244

Subnautical

#012253

Naval Night

#011C39

Cola

#402900

Stratos

#090040

Cyprus

#003740

Toledo

#400017

Deep Fir

#174000

Temptress

#400900

East Bay

#3B4574

Black Russian

#000014