#bb3f1a

Thunderbird

Closest match (96% match)

Color formats

RGB

rgb(187, 63, 26)

Red, Green, Blue components

HSL

hsl(14, 76%, 42%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 66, 86, 27)

Print color encoding

Luminance

0.142

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#bb3f1a

#1a96bb

Analogous (Adjacent)

#bb1a45

#bb3f1a

#bb901a

Triadic

#bb3f1a

#1abb3f

#3f1abb

Split complementary

#bb3f1a

#1abb90

#1a45bb

Complete conversion table

HEX

#BB3F1A

RGB

rgb(187,63,26)

RGBA

rgba(187,63,26, 1)

HSL

hsl(13.79,75.59%,41.76%)

OKLCH (Modern CSS)

oklch(0.54 0.17 36.3)

CSS Variable

--color: #bb3f1a;

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

5.47

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

3.84

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#bb3f1a#2f2e1a

ORIG

SIM

Deuteranopia (green)

#bb3f1a#7e8b1a

ORIG

SIM

Tritanopia (blue)

#bb3f1a#b56e79

ORIG

SIM

Monochrome (color blind)

#bb3f1a#7f635a

Mixing guide

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

MIXING PALETTE

61%

21%

18%

RYB PIGMENTS

Cadmium red

Pigment

61%

Ivory black

Pigment

21%

Cadmium yellow

Pigment

18%

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)

14.2%

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.

Spice Market

#B84823

Paprika Kisses

#C24325

Once Bitten

#BD2F10

Dropped Brick

#BB3300

Eastern Blue

#1A96BB

Lucky

#BB901A

Cardinal

#BB1A45

Malachite

#1ABB3F

Persian Blue

#3F1ABB

Mountain Meadow

#1ABB90

Coral

#FF794E

Maroon

#7A0000