#ac310f

Rust

Closest match (95% match)

Color formats

RGB

rgb(172, 49, 15)

Red, Green, Blue components

HSL

hsl(13, 84%, 37%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 72, 91, 33)

Print color encoding

Luminance

0.110

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#ac310f

#0f8aac

Analogous (Adjacent)

#ac0f3b

#ac310f

#ac800f

Triadic

#ac310f

#0fac31

#310fac

Split complementary

#ac310f

#0fac80

#0f3bac

Complete conversion table

HEX

#AC310F

RGB

rgb(172,49,15)

RGBA

rgba(172,49,15, 1)

HSL

hsl(12.99,83.96%,36.67%)

OKLCH (Modern CSS)

oklch(0.50 0.16 35.0)

CSS Variable

--color: #ac310f;

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

6.56

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

3.20

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#ac310f#22220f

ORIG

SIM

Deuteranopia (green)

#ac310f#707d0f

ORIG

SIM

Tritanopia (blue)

#ac310f#a6616b

ORIG

SIM

Monochrome (color blind)

#ac310f#72574f

Mixing guide

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

MIXING PALETTE

55%

30%

15%

RYB PIGMENTS

Cadmium red

Pigment

55%

Ivory black

Pigment

30%

Cadmium yellow

Pigment

15%

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)

11.0%

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.

Rusty Red

#AF2F0D

Grilled Tomato

#AF3519

Crimson Velvet Sunset

#B52604

Salsa Picante

#AB250B

Blue Chill

#0F8AAC

Buttered Rum

#AC800F

Shiraz

#AC0F3B

Salem

#0FAC31

Blue Gem

#310FAC

Niagara

#0FAC80

Jaffa

#F06B43

Lonestar

#6C0000