#231b00

Cola

Closest match (89% match)

Color formats

RGB

rgb(35, 27, 0)

Red, Green, Blue components

HSL

hsl(46, 100%, 7%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 23, 100, 86)

Print color encoding

Luminance

0.011

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#231b00

#000823

Analogous (Adjacent)

#230900

#231b00

#1a2300

Triadic

#231b00

#00231b

#1b0023

Split complementary

#231b00

#001a23

#0a0023

Complete conversion table

HEX

#231B00

RGB

rgb(35,27,0)

RGBA

rgba(35,27,0, 1)

HSL

hsl(46.29,100%,6.86%)

OKLCH (Modern CSS)

oklch(0.23 0.05 93.6)

CSS Variable

--color: #231b00;

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

17.10

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.23

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#231b00#0f0f00

ORIG

SIM

Deuteranopia (green)

#231b00#161900

ORIG

SIM

Tritanopia (blue)

#231b00#231c1f

ORIG

SIM

Monochrome (color blind)

#231b00#1c1c1c

Mixing guide

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

MIXING PALETTE

86%

11%

RYB PIGMENTS

Ivory black

Pigment

86%

Cadmium yellow

Pigment

11%

Cadmium red

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

Yellow hue

570–590 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)

1.1%

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.

Noir Mystique

#1F180A

Secret Passage

#372A05

Burnt Coffee

#271B10

Soulless

#1B150D

Midnight

#000823

Deep Fir

#1A2300

Nero

#230900

Burnham

#00231B

Black Russian

#1B0023

Swamp

#001A23

Judge Gray

#534A33

Black

#000000