#51748d

Smalt Blue

Closest match (93% match)

Color formats

RGB

rgb(81, 116, 141)

Red, Green, Blue components

HSL

hsl(205, 27%, 44%)

Hue, Saturation, Lightness

CMYK

cmyk(43, 18, 0, 45)

Print color encoding

Luminance

0.162

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#51748d

#8d6a51

Analogous (Adjacent)

#518d88

#51748d

#51568d

Triadic

#51748d

#8d5174

#748d51

Split complementary

#51748d

#8d5156

#8d8851

Complete conversion table

HEX

#51748D

RGB

rgb(81,116,141)

RGBA

rgba(81,116,141, 1)

HSL

hsl(205,27.03%,43.53%)

OKLCH (Modern CSS)

oklch(0.54 0.06 240.2)

CSS Variable

--color: #51748d;

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

4.96

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.23

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#51748d#7f7f8d

ORIG

SIM

Deuteranopia (green)

#51748d#66638d

ORIG

SIM

Tritanopia (blue)

#51748d#535964

ORIG

SIM

Monochrome (color blind)

#51748d#707070

Mixing guide

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

MIXING PALETTE

55%

35%

RYB PIGMENTS

Ultramarine blue

Pigment

55%

Ivory black

Pigment

35%

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)

16.2%

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.

Beach View

#4F7694

Shipyard

#4F6F85

Harbour Blue

#417491

Plumbeous

#5C7287

Leather

#8D6A51

Waikawa Gray

#51568D

Smalt Blue

#518D88

Cannon Pink

#8D5174

Asparagus

#748D51

Au Chico

#8D5156

Polo Blue

#89ACC7

Nile Blue

#1A4057