#00231d

Swamp

Closest match (94% match)

Color formats

RGB

rgb(0, 35, 29)

Red, Green, Blue components

HSL

hsl(170, 100%, 7%)

Hue, Saturation, Lightness

CMYK

cmyk(100, 0, 17, 86)

Print color encoding

Luminance

0.013

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#00231d

#230006

Analogous (Adjacent)

#00230b

#00231d

#001823

Triadic

#00231d

#1d0023

#231d00

Split complementary

#00231d

#230018

#230b00

Complete conversion table

HEX

#00231D

RGB

rgb(0,35,29)

RGBA

rgba(0,35,29, 1)

HSL

hsl(169.71,100%,6.86%)

OKLCH (Modern CSS)

oklch(0.23 0.04 178.8)

CSS Variable

--color: #00231d;

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

16.69

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.26

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#00231d#20201d

ORIG

SIM

Deuteranopia (green)

#00231d#0b091d

ORIG

SIM

Tritanopia (blue)

#00231d#021013

ORIG

SIM

Monochrome (color blind)

#00231d#1e1e1e

Mixing guide

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

MIXING PALETTE

86%

10%

RYB PIGMENTS

Ivory black

Pigment

86%

Ultramarine blue

Pigment

10%

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

Green hue

495–570 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)

1.3%

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.

Nightmare

#112211

Pitch-Black Forests

#003322

Elite Teal

#133337

Botanical Night

#12403C

Diesel

#230006

Swamp

#001823

Deep Fir

#00230B

Mardi Gras

#1D0023

Cola

#231D00

Toledo

#230018

Stromboli

#31544C

Black

#000000