#421f22

Crater Brown

Closest match (98% match)

Color formats

RGB

rgb(66, 31, 34)

Red, Green, Blue components

HSL

hsl(355, 36%, 19%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 53, 48, 74)

Print color encoding

Luminance

0.023

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#421f22

#1f423f

Analogous (Adjacent)

#421f34

#421f22

#422e1f

Triadic

#421f22

#22421f

#1f2242

Split complementary

#421f22

#1f422e

#1f3342

Complete conversion table

HEX

#421F22

RGB

rgb(66,31,34)

RGBA

rgba(66,31,34, 1)

HSL

hsl(354.86,36.08%,19.02%)

OKLCH (Modern CSS)

oklch(0.29 0.05 15.6)

CSS Variable

--color: #421f22;

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

14.48

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.45

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#421f22#202022

ORIG

SIM

Deuteranopia (green)

#421f22#363822

ORIG

SIM

Tritanopia (blue)

#421f22#402b2f

ORIG

SIM

Monochrome (color blind)

#421f22#292929

Mixing guide

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

MIXING PALETTE

82%

17%

RYB PIGMENTS

Ivory black

Pigment

82%

Cadmium red

Pigment

17%

Ultramarine blue

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

Red hue

620–750 nm • closest visible-spectrum range

750 nm

380 nm

Visual temperature

Warm

A perceptual warm–cool classification. Kelvin does not apply to an arbitrary interface color.

Cool

Neutral

Warm

Luminance (brightness)

2.3%

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.

Bruised Plum

#3B1921

Lonestar

#522426

Dark Roast

#4A2D2F

Brown Coffee

#4A2C2A

Te Papa Green

#1F423F

Iroko

#422D1F

Livid Brown

#421F33

Mallard

#22421F

Port Gore

#1F2242

Everglade

#1F422E

Ferra

#785052

Diesel

#1A0000