#231b4a

Port Gore

Closest match (99% match)

Color formats

RGB

rgb(35, 27, 74)

Red, Green, Blue components

HSL

hsl(250, 47%, 20%)

Hue, Saturation, Lightness

CMYK

cmyk(53, 64, 0, 71)

Print color encoding

Luminance

0.016

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#231b4a

#424a1b

Analogous (Adjacent)

#1b2a4a

#231b4a

#3b1b4a

Triadic

#231b4a

#4a231b

#1b4a23

Split complementary

#231b4a

#4a3b1b

#2b4a1b

Complete conversion table

HEX

#231B4A

RGB

rgb(35,27,74)

RGBA

rgba(35,27,74, 1)

HSL

hsl(250.21,46.53%,19.8%)

OKLCH (Modern CSS)

oklch(0.26 0.08 286.9)

CSS Variable

--color: #231b4a;

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

15.82

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.33

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#231b4a#30304a

ORIG

SIM

Deuteranopia (green)

#231b4a#312f4a

ORIG

SIM

Tritanopia (blue)

#231b4a#231c1f

ORIG

SIM

Monochrome (color blind)

#231b4a#222222

Mixing guide

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

MIXING PALETTE

75%

21%

RYB PIGMENTS

Ivory black

Pigment

75%

Ultramarine blue

Pigment

21%

Cadmium red

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

Blue hue

450–495 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)

1.6%

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.

Azulado

#211D49

Fly by Night

#1C1E4D

Pāua

#2A2551

Deadly Depths

#111144

Thatch Green

#424A1B

Grape

#3B1B4A

Cloud Burst

#1B2A4A

Cocoa Bean

#4A231B

Everglade

#1B4A23

Metallic Bronze

#4A3B1B

East Bay

#574A7F

Black Russian

#00001D