#81291e

Red Robin

Closest match (96% match)

Color formats

RGB

rgb(129, 41, 30)

Red, Green, Blue components

HSL

hsl(7, 62%, 31%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 68, 77, 49)

Print color encoding

Luminance

0.063

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#81291e

#1e7681

Analogous (Adjacent)

#811e44

#81291e

#815b1e

Triadic

#81291e

#1e8129

#291e81

Split complementary

#81291e

#1e815b

#1e4481

Complete conversion table

HEX

#81291E

RGB

rgb(129,41,30)

RGBA

rgba(129,41,30, 1)

HSL

hsl(6.67,62.26%,31.18%)

OKLCH (Modern CSS)

oklch(0.41 0.12 30.2)

CSS Variable

--color: #81291e;

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

9.25

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.27

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#81291e#24241e

ORIG

SIM

Deuteranopia (green)

#81291e#5b631e

ORIG

SIM

Tritanopia (blue)

#81291e#7d4b52

ORIG

SIM

Monochrome (color blind)

#81291e#474747

Mixing guide

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

MIXING PALETTE

49%

45%

RYB PIGMENTS

Ivory black

Pigment

49%

Cadmium red

Pigment

45%

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

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)

6.3%

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.

Minotaurus Brown

#882211

Kobe

#882D17

Netherworld

#881111

Saffronaut

#932A25

Elm

#1E7681

Kumera

#815B1E

Claret

#811E44

Forest Green

#1E8129

Jacksons Purple

#291E81

Eucalyptus

#1E815B

Fuzzy Wuzzy Brown

#C05F4E

Temptress

#470000