#280939

Violet

Closest match (97% match)

Color formats

RGB

rgb(40, 9, 57)

Red, Green, Blue components

HSL

hsl(279, 73%, 13%)

Hue, Saturation, Lightness

CMYK

cmyk(30, 84, 0, 78)

Print color encoding

Luminance

0.009

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#280939

#1a3909

Analogous (Adjacent)

#100939

#280939

#390932

Triadic

#280939

#392809

#093928

Split complementary

#280939

#323909

#093910

Complete conversion table

HEX

#280939

RGB

rgb(40,9,57)

RGBA

rgba(40,9,57, 1)

HSL

hsl(278.75,72.73%,12.94%)

OKLCH (Modern CSS)

oklch(0.22 0.09 310.6)

CSS Variable

--color: #280939;

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%

1D

1W

1M

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

17.67

AP

Small text (14pt)

The quick brown fox jumps over...

AA

AAA

Large text or UI (18pt Bold)

AA

AAA

On black background

1.19

AP

Small text (14pt)

The quick brown fox jumps over...

AA

AAA

Large text or UI (18pt Bold)

AA

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#280939#1e1f39

ORIG

SIM

Deuteranopia (green)

#280939#2e2d39

ORIG

SIM

Tritanopia (blue)

#280939#261518

ORIG

SIM

Monochrome (color blind)

#280939#181818

Mixing guide

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

MIXING PALETTE

75%

13%

12%

RYB PIGMENTS

Ivory black

Pigment

75%

Ultramarine blue

Pigment

13%

Cadmium red

Pigment

12%

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

Violet hue

380–450 nm • closest visible-spectrum range

750 nm

380 nm

Visual temperature

Cool

A perceptual warm–cool classification. Kelvin does not apply to an arbitrary interface color.

Cool

Neutral

Warm

Luminance (brightness)

0.9%

Dark • relative luminance

0%

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.

Coalmine

#220033

Dark Purple

#35063E

Quiet Abyss

#160435

Romanic Scene

#3B0346

Deep Forest Green

#1A3909

Loulou

#390932

Violet

#100939

Clinker

#392809

Bottle Green

#093928

Turtle Green

#323909

Bossanova

#5B396D

Black Russian

#00000C


Top tools

WorkspaceLinksySEO AnalyzerChromoQR Code Generator

ReadyTools

CareersContactTools
Pricing7 days free
SupportSecurityGuidesDocsBlogUpdatesLaraVault

Select Language

Set theme

ReadyTools

© 2026 ReadyTools. All rights reserved.