#4b0013

Castro

Closest match (96% match)

Color formats

RGB

rgb(75, 0, 19)

Red, Green, Blue components

HSL

hsl(345, 100%, 15%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 100, 75, 71)

Print color encoding

Luminance

0.015

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#4b0013

#004b38

Analogous (Adjacent)

#4b0038

#4b0013

#4b1200

Triadic

#4b0013

#134b00

#00134b

Split complementary

#4b0013

#004b13

#00394b

Complete conversion table

HEX

#4B0013

RGB

rgb(75,0,19)

RGBA

rgba(75,0,19, 1)

HSL

hsl(344.8,100%,14.71%)

OKLCH (Modern CSS)

oklch(0.26 0.10 15.2)

CSS Variable

--color: #4b0013;

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

16.05

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.31

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#4b0013#080913

ORIG

SIM

Deuteranopia (green)

#4b0013#363a13

ORIG

SIM

Tritanopia (blue)

#4b0013#472023

ORIG

SIM

Monochrome (color blind)

#4b0013#212121

Mixing guide

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

MIXING PALETTE

71%

26%

RYB PIGMENTS

Ivory black

Pigment

71%

Cadmium red

Pigment

26%

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

Non-spectral color

No single wavelength

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)

1.5%

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.

English Breakfast

#441111

Merguez

#650021

What We Do in the Shadows

#441122

Cherry Picking

#620B15

Aqua Deep

#004B38

Morocco Brown

#4B1300

Blackberry

#4B0038

Crusoe

#134B00

Stratos

#00134B

Crusoe

#004B13

Solid Pink

#853841

Diesel

#280000