#233d5d

Cello

Closest match (98% match)

Color formats

RGB

rgb(35, 61, 93)

Red, Green, Blue components

HSL

hsl(213, 45%, 25%)

Hue, Saturation, Lightness

CMYK

cmyk(62, 34, 0, 64)

Print color encoding

Luminance

0.045

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#233d5d

#5d4323

Analogous (Adjacent)

#235a5d

#233d5d

#26235d

Triadic

#233d5d

#5d233d

#3d5d23

Split complementary

#233d5d

#5d2623

#5a5d23

Complete conversion table

HEX

#233D5D

RGB

rgb(35,61,93)

RGBA

rgba(35,61,93, 1)

HSL

hsl(213.1,45.31%,25.1%)

OKLCH (Modern CSS)

oklch(0.36 0.06 254.4)

CSS Variable

--color: #233d5d;

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

11.07

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.90

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#233d5d#4b4b5d

ORIG

SIM

Deuteranopia (green)

#233d5d#38345d

ORIG

SIM

Tritanopia (blue)

#233d5d#242c31

ORIG

SIM

Monochrome (color blind)

#233d5d#3c3c3c

Mixing guide

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

MIXING PALETTE

69%

28%

RYB PIGMENTS

Ivory black

Pigment

69%

Ultramarine blue

Pigment

28%

Cadmium yellow

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)

4.5%

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.

Nautilus

#273C5A

Black Turmeric

#2C4364

Poseidon

#143C5D

Nightlife

#27426B

Irish Coffee

#5D4323

Port Gore

#26235D

Blue Dianne

#235A5D

Tawny Port

#5D233D

Woodland

#3D5D23

Cocoa Bean

#5D2623

Waikawa Gray

#597094

Midnight

#000E2B