#bb1516

Thunderbird

Closest match (97% match)

Color formats

RGB

rgb(187, 21, 22)

Red, Green, Blue components

HSL

hsl(360, 80%, 41%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 89, 88, 27)

Print color encoding

Luminance

0.112

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#bb1516

#15bbba

Analogous (Adjacent)

#bb1569

#bb1516

#bb6715

Triadic

#bb1516

#16bb15

#1516bb

Split complementary

#bb1516

#15bb67

#1569bb

Complete conversion table

HEX

#BB1516

RGB

rgb(187,21,22)

RGBA

rgba(187,21,22, 1)

HSL

hsl(359.64,79.81%,40.78%)

OKLCH (Modern CSS)

oklch(0.51 0.20 27.9)

CSS Variable

--color: #bb1516;

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

6.50

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

3.23

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#bb1516#151516

ORIG

SIM

Deuteranopia (green)

#bb1516#7c8a16

ORIG

SIM

Tritanopia (blue)

#bb1516#b35a63

ORIG

SIM

Monochrome (color blind)

#bb1516#805349

Mixing guide

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

MIXING PALETTE

78%

22%

RYB PIGMENTS

Cadmium red

Pigment

78%

Ivory black

Pigment

22%

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)

11.2%

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.

Heartwarming

#BF1818

Red Baron

#BB0011

Federation of Love

#B71010

Red Inferno

#BB1E1E

Java

#15BBBA

Orange Roughy

#BB6715

Red Violet

#BB1569

La Palma

#16BB15

Persian Blue

#1516BB

Mountain Meadow

#15BB67

Persimmon

#FF5D48

Maroon

#780000